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b0319ab79b
This patch fixes an issue during SelectionDAG construction. When the target is unable to lower the function's return value, a hidden sret parameter is created. It is initialized and copied to a stored variable (DemoteRegister) with CopyToReg and is later fetched with CopyFromReg. The bug is that the chains used for each copy are inconsistent, and thus in rare cases the scheduler may issue them out of order. The fix is to ensure that the CopyFromReg uses the DAG root which is set as the chain corresponding to the initial CopyToReg. Fixes https://llvm.org/PR52475 Reviewed By: craig.topper Differential Revision: https://reviews.llvm.org/D114795
444 lines
15 KiB
LLVM
444 lines
15 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -verify-machineinstrs -mattr=+simd128 | FileCheck %s
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; Test that vector float-to-int and int-to-float instructions lower correctly
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target triple = "wasm32-unknown-unknown"
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define <4 x float> @convert_s_v4f32(<4 x i32> %x) {
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; CHECK-LABEL: convert_s_v4f32:
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; CHECK: .functype convert_s_v4f32 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f32x4.convert_i32x4_s
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; CHECK-NEXT: # fallthrough-return
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%a = sitofp <4 x i32> %x to <4 x float>
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ret <4 x float> %a
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}
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define <4 x float> @convert_u_v4f32(<4 x i32> %x) {
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; CHECK-LABEL: convert_u_v4f32:
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; CHECK: .functype convert_u_v4f32 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f32x4.convert_i32x4_u
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; CHECK-NEXT: # fallthrough-return
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%a = uitofp <4 x i32> %x to <4 x float>
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ret <4 x float> %a
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}
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define <2 x double> @convert_s_v2f64(<2 x i64> %x) {
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; CHECK-LABEL: convert_s_v2f64:
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; CHECK: .functype convert_s_v2f64 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: i64x2.extract_lane 0
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; CHECK-NEXT: f64.convert_i64_s
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; CHECK-NEXT: f64x2.splat
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: i64x2.extract_lane 1
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; CHECK-NEXT: f64.convert_i64_s
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; CHECK-NEXT: f64x2.replace_lane 1
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; CHECK-NEXT: # fallthrough-return
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%a = sitofp <2 x i64> %x to <2 x double>
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ret <2 x double> %a
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}
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define <2 x double> @convert_u_v2f64(<2 x i64> %x) {
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; CHECK-LABEL: convert_u_v2f64:
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; CHECK: .functype convert_u_v2f64 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: v128.const 4294967295, 4294967295
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; CHECK-NEXT: v128.and
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; CHECK-NEXT: v128.const 4841369599423283200, 4841369599423283200
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; CHECK-NEXT: v128.or
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: i32.const 32
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; CHECK-NEXT: i64x2.shr_u
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; CHECK-NEXT: v128.const 4985484787499139072, 4985484787499139072
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; CHECK-NEXT: v128.or
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; CHECK-NEXT: v128.const 0x1.00000001p84, 0x1.00000001p84
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; CHECK-NEXT: f64x2.sub
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; CHECK-NEXT: f64x2.add
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; CHECK-NEXT: # fallthrough-return
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%a = uitofp <2 x i64> %x to <2 x double>
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ret <2 x double> %a
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}
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define <4 x i32> @trunc_sat_s_v4i32(<4 x float> %x) {
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; CHECK-LABEL: trunc_sat_s_v4i32:
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; CHECK: .functype trunc_sat_s_v4i32 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: i32x4.trunc_sat_f32x4_s
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; CHECK-NEXT: # fallthrough-return
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%a = fptosi <4 x float> %x to <4 x i32>
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ret <4 x i32> %a
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}
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define <4 x i32> @trunc_sat_u_v4i32(<4 x float> %x) {
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; CHECK-LABEL: trunc_sat_u_v4i32:
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; CHECK: .functype trunc_sat_u_v4i32 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: i32x4.trunc_sat_f32x4_u
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; CHECK-NEXT: # fallthrough-return
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%a = fptoui <4 x float> %x to <4 x i32>
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ret <4 x i32> %a
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}
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define <2 x i64> @trunc_sat_s_v2i64(<2 x double> %x) {
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; CHECK-LABEL: trunc_sat_s_v2i64:
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; CHECK: .functype trunc_sat_s_v2i64 (v128) -> (v128)
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; CHECK-NEXT: .local f64, i64, i64
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: block
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; CHECK-NEXT: block
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.extract_lane 1
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; CHECK-NEXT: local.tee 1
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; CHECK-NEXT: f64.abs
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; CHECK-NEXT: f64.const 0x1p63
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; CHECK-NEXT: f64.lt
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; CHECK-NEXT: i32.eqz
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; CHECK-NEXT: br_if 0 # 0: down to label1
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i64.trunc_f64_s
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; CHECK-NEXT: local.set 2
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; CHECK-NEXT: br 1 # 1: down to label0
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; CHECK-NEXT: .LBB6_2:
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; CHECK-NEXT: end_block # label1:
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; CHECK-NEXT: i64.const -9223372036854775808
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; CHECK-NEXT: local.set 2
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; CHECK-NEXT: .LBB6_3:
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; CHECK-NEXT: end_block # label0:
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; CHECK-NEXT: block
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; CHECK-NEXT: block
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.extract_lane 0
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; CHECK-NEXT: local.tee 1
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; CHECK-NEXT: f64.abs
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; CHECK-NEXT: f64.const 0x1p63
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; CHECK-NEXT: f64.lt
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; CHECK-NEXT: i32.eqz
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; CHECK-NEXT: br_if 0 # 0: down to label3
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; CHECK-NEXT: # %bb.4:
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i64.trunc_f64_s
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; CHECK-NEXT: local.set 3
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; CHECK-NEXT: br 1 # 1: down to label2
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; CHECK-NEXT: .LBB6_5:
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; CHECK-NEXT: end_block # label3:
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; CHECK-NEXT: i64.const -9223372036854775808
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; CHECK-NEXT: local.set 3
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; CHECK-NEXT: .LBB6_6:
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; CHECK-NEXT: end_block # label2:
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; CHECK-NEXT: local.get 3
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; CHECK-NEXT: i64x2.splat
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; CHECK-NEXT: local.get 2
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; CHECK-NEXT: i64x2.replace_lane 1
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; CHECK-NEXT: # fallthrough-return
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%a = fptosi <2 x double> %x to <2 x i64>
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ret <2 x i64> %a
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}
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define <2 x i64> @trunc_sat_u_v2i64(<2 x double> %x) {
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; CHECK-LABEL: trunc_sat_u_v2i64:
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; CHECK: .functype trunc_sat_u_v2i64 (v128) -> (v128)
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; CHECK-NEXT: .local f64, i64, i64
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: block
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; CHECK-NEXT: block
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.extract_lane 1
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; CHECK-NEXT: local.tee 1
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; CHECK-NEXT: f64.const 0x1p64
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; CHECK-NEXT: f64.lt
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: f64.const 0x0p0
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; CHECK-NEXT: f64.ge
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; CHECK-NEXT: i32.and
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; CHECK-NEXT: i32.eqz
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; CHECK-NEXT: br_if 0 # 0: down to label5
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; CHECK-NEXT: # %bb.1:
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i64.trunc_f64_u
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; CHECK-NEXT: local.set 2
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; CHECK-NEXT: br 1 # 1: down to label4
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; CHECK-NEXT: .LBB7_2:
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; CHECK-NEXT: end_block # label5:
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; CHECK-NEXT: i64.const 0
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; CHECK-NEXT: local.set 2
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; CHECK-NEXT: .LBB7_3:
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; CHECK-NEXT: end_block # label4:
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; CHECK-NEXT: block
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; CHECK-NEXT: block
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.extract_lane 0
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; CHECK-NEXT: local.tee 1
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; CHECK-NEXT: f64.const 0x1p64
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; CHECK-NEXT: f64.lt
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: f64.const 0x0p0
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; CHECK-NEXT: f64.ge
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; CHECK-NEXT: i32.and
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; CHECK-NEXT: i32.eqz
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; CHECK-NEXT: br_if 0 # 0: down to label7
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; CHECK-NEXT: # %bb.4:
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i64.trunc_f64_u
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; CHECK-NEXT: local.set 3
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; CHECK-NEXT: br 1 # 1: down to label6
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; CHECK-NEXT: .LBB7_5:
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; CHECK-NEXT: end_block # label7:
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; CHECK-NEXT: i64.const 0
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; CHECK-NEXT: local.set 3
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; CHECK-NEXT: .LBB7_6:
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; CHECK-NEXT: end_block # label6:
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; CHECK-NEXT: local.get 3
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; CHECK-NEXT: i64x2.splat
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; CHECK-NEXT: local.get 2
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; CHECK-NEXT: i64x2.replace_lane 1
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; CHECK-NEXT: # fallthrough-return
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%a = fptoui <2 x double> %x to <2 x i64>
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ret <2 x i64> %a
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}
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define <4 x float> @demote_zero_v4f32(<2 x double> %x) {
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; CHECK-LABEL: demote_zero_v4f32:
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; CHECK: .functype demote_zero_v4f32 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f32x4.demote_zero_f64x2
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <2 x double> %x, <2 x double> zeroinitializer,
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<4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%a = fptrunc <4 x double> %v to <4 x float>
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ret <4 x float> %a
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}
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define <4 x float> @demote_zero_v4f32_2(<2 x double> %x) {
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; CHECK-LABEL: demote_zero_v4f32_2:
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; CHECK: .functype demote_zero_v4f32_2 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f32x4.demote_zero_f64x2
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; CHECK-NEXT: # fallthrough-return
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%v = fptrunc <2 x double> %x to <2 x float>
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%a = shufflevector <2 x float> %v, <2 x float> zeroinitializer,
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<4 x i32> <i32 0, i32 1, i32 2, i32 3>
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ret <4 x float> %a
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}
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define <2 x double> @convert_low_s_v2f64(<4 x i32> %x) {
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; CHECK-LABEL: convert_low_s_v2f64:
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; CHECK: .functype convert_low_s_v2f64 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_s
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <4 x i32> %x, <4 x i32> undef, <2 x i32> <i32 0, i32 1>
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%a = sitofp <2 x i32> %v to <2 x double>
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ret <2 x double> %a
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}
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define <2 x double> @convert_low_u_v2f64(<4 x i32> %x) {
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; CHECK-LABEL: convert_low_u_v2f64:
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; CHECK: .functype convert_low_u_v2f64 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_u
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <4 x i32> %x, <4 x i32> undef, <2 x i32> <i32 0, i32 1>
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%a = uitofp <2 x i32> %v to <2 x double>
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ret <2 x double> %a
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}
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define <2 x double> @convert_low_s_v2f64_2(<4 x i32> %x) {
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; CHECK-LABEL: convert_low_s_v2f64_2:
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; CHECK: .functype convert_low_s_v2f64_2 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_s
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; CHECK-NEXT: # fallthrough-return
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%v = sitofp <4 x i32> %x to <4 x double>
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%a = shufflevector <4 x double> %v, <4 x double> undef, <2 x i32> <i32 0, i32 1>
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ret <2 x double> %a
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}
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define <2 x double> @convert_low_u_v2f64_2(<4 x i32> %x) {
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; CHECK-LABEL: convert_low_u_v2f64_2:
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; CHECK: .functype convert_low_u_v2f64_2 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_u
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; CHECK-NEXT: # fallthrough-return
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%v = uitofp <4 x i32> %x to <4 x double>
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%a = shufflevector <4 x double> %v, <4 x double> undef, <2 x i32> <i32 0, i32 1>
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ret <2 x double> %a
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}
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define <2 x double> @promote_low_v2f64(<4 x float> %x) {
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; CHECK-LABEL: promote_low_v2f64:
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; CHECK: .functype promote_low_v2f64 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.promote_low_f32x4
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <4 x float> %x, <4 x float> undef, <2 x i32> <i32 0, i32 1>
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%a = fpext <2 x float> %v to <2 x double>
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ret <2 x double> %a
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}
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define <2 x double> @promote_low_v2f64_2(<4 x float> %x) {
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; CHECK-LABEL: promote_low_v2f64_2:
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; CHECK: .functype promote_low_v2f64_2 (v128) -> (v128)
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: f64x2.promote_low_f32x4
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; CHECK-NEXT: # fallthrough-return
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%v = fpext <4 x float> %x to <4 x double>
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%a = shufflevector <4 x double> %v, <4 x double> undef, <2 x i32> <i32 0, i32 1>
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ret <2 x double> %a
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}
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;; Also check with illegally wide vectors
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define <4 x double> @convert_low_s_v4f64(<8 x i32> %x) {
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; CHECK-LABEL: convert_low_s_v4f64:
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; CHECK: .functype convert_low_s_v4f64 (i32, v128, v128) -> ()
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_s
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; CHECK-NEXT: v128.store 16
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: f64x2.convert_low_i32x4_s
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; CHECK-NEXT: v128.store 0
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <8 x i32> %x, <8 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%a = sitofp <4 x i32> %v to <4 x double>
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ret <4 x double> %a
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}
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define <4 x double> @convert_low_u_v4f64(<8 x i32> %x) {
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; CHECK-LABEL: convert_low_u_v4f64:
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; CHECK: .functype convert_low_u_v4f64 (i32, v128, v128) -> ()
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_u
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; CHECK-NEXT: v128.store 16
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: f64x2.convert_low_i32x4_u
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; CHECK-NEXT: v128.store 0
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; CHECK-NEXT: # fallthrough-return
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%v = shufflevector <8 x i32> %x, <8 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%a = uitofp <4 x i32> %v to <4 x double>
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ret <4 x double> %a
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}
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define <4 x double> @convert_low_s_v4f64_2(<8 x i32> %x) {
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; CHECK-LABEL: convert_low_s_v4f64_2:
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; CHECK: .functype convert_low_s_v4f64_2 (i32, v128, v128) -> ()
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0
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; CHECK-NEXT: f64x2.convert_low_i32x4_s
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; CHECK-NEXT: v128.store 16
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: local.get 1
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; CHECK-NEXT: f64x2.convert_low_i32x4_s
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; CHECK-NEXT: v128.store 0
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; CHECK-NEXT: # fallthrough-return
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%v = sitofp <8 x i32> %x to <8 x double>
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%a = shufflevector <8 x double> %v, <8 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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ret <4 x double> %a
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}
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define <4 x double> @convert_low_u_v4f64_2(<8 x i32> %x) {
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; CHECK-LABEL: convert_low_u_v4f64_2:
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; CHECK: .functype convert_low_u_v4f64_2 (i32, v128, v128) -> ()
|
|
; CHECK-NEXT: # %bb.0:
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0
|
|
; CHECK-NEXT: f64x2.convert_low_i32x4_u
|
|
; CHECK-NEXT: v128.store 16
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: f64x2.convert_low_i32x4_u
|
|
; CHECK-NEXT: v128.store 0
|
|
; CHECK-NEXT: # fallthrough-return
|
|
%v = uitofp <8 x i32> %x to <8 x double>
|
|
%a = shufflevector <8 x double> %v, <8 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
|
|
ret <4 x double> %a
|
|
}
|
|
|
|
define <4 x double> @promote_low_v4f64(<8 x float> %x) {
|
|
; CHECK-LABEL: promote_low_v4f64:
|
|
; CHECK: .functype promote_low_v4f64 (i32, v128, v128) -> ()
|
|
; CHECK-NEXT: # %bb.0:
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0
|
|
; CHECK-NEXT: f64x2.promote_low_f32x4
|
|
; CHECK-NEXT: v128.store 16
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: f64x2.promote_low_f32x4
|
|
; CHECK-NEXT: v128.store 0
|
|
; CHECK-NEXT: # fallthrough-return
|
|
%v = shufflevector <8 x float> %x, <8 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
|
|
%a = fpext <4 x float> %v to <4 x double>
|
|
ret <4 x double> %a
|
|
}
|
|
|
|
define <4 x double> @promote_low_v4f64_2(<8 x float> %x) {
|
|
; CHECK-LABEL: promote_low_v4f64_2:
|
|
; CHECK: .functype promote_low_v4f64_2 (i32, v128, v128) -> ()
|
|
; CHECK-NEXT: # %bb.0:
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0
|
|
; CHECK-NEXT: f64x2.promote_low_f32x4
|
|
; CHECK-NEXT: v128.store 16
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: f64x2.promote_low_f32x4
|
|
; CHECK-NEXT: v128.store 0
|
|
; CHECK-NEXT: # fallthrough-return
|
|
%v = fpext <8 x float> %x to <8 x double>
|
|
%a = shufflevector <8 x double> %v, <8 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
|
|
ret <4 x double> %a
|
|
}
|
|
|
|
define <2 x double> @promote_mixed_v2f64(<4 x float> %x, <4 x float> %y) {
|
|
; CHECK-LABEL: promote_mixed_v2f64:
|
|
; CHECK: .functype promote_mixed_v2f64 (v128, v128) -> (v128)
|
|
; CHECK-NEXT: # %bb.0:
|
|
; CHECK-NEXT: local.get 0
|
|
; CHECK-NEXT: local.get 1
|
|
; CHECK-NEXT: i8x16.shuffle 8, 9, 10, 11, 28, 29, 30, 31, 0, 0, 0, 0, 0, 0, 0, 0
|
|
; CHECK-NEXT: f64x2.promote_low_f32x4
|
|
; CHECK-NEXT: # fallthrough-return
|
|
%v = shufflevector <4 x float> %x, <4 x float> %y, <2 x i32> <i32 2, i32 7>
|
|
%a = fpext <2 x float> %v to <2 x double>
|
|
ret <2 x double> %a
|
|
}
|