llvm-project/llvm/test/CodeGen/PowerPC/asm-constraints.ll
Kai Nacke 427fb35192 [PPC] Opaque pointer migration, part 1.
The LIT test cases were migrated with the script provided by
Nikita Popov. Due to the size of the change it is split into
several parts.

Reviewed By: nemanja, amyk, nikic, PowerPC

Differential Revision: https://reviews.llvm.org/D135470
2022-10-11 17:24:06 +00:00

74 lines
2.3 KiB
LLVM

; RUN: llc -verify-machineinstrs < %s -mcpu=pwr8 | FileCheck %s
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
; Function Attrs: nounwind
; Check that we accept 'U' and 'X' constraints.
; Generated from following C code:
;
; void foo (int result, char *addr) {
; __asm__ __volatile__ (
; "ld%U1%X1 %0,%1\n"
; "cmpw %0,%0\n"
; "bne- 1f\n"
; "1: isync\n"
; : "=r" (result)
; : "m"(*addr) : "memory", "cr0");
; }
define void @foo(i32 signext %result, ptr %addr) #0 {
; CHECK-LABEL: @foo
; CHECK: ld [[REG:[0-9]+]], 0(4)
; CHECK: cmpw [[REG]], [[REG]]
; CHECK: bne- 0, .Ltmp[[TMP:[0-9]+]]
; CHECK: .Ltmp[[TMP]]:
; CHECK: isync
entry:
%result.addr = alloca i32, align 4
%addr.addr = alloca ptr, align 8
store i32 %result, ptr %result.addr, align 4
store ptr %addr, ptr %addr.addr, align 8
%0 = load ptr, ptr %addr.addr, align 8
%1 = call i32 asm sideeffect "ld${1:U}${1:X} $0,$1\0Acmpw $0,$0\0Abne- 1f\0A1: isync\0A", "=r,*m,~{memory},~{cr0}"(ptr elementtype(i8) %0) #1, !srcloc !0
store i32 %1, ptr %result.addr, align 4
ret void
}
; Function Attrs: nounwind
; Check that we accept the 'd' constraint.
; Generated from the following C code:
; int foo(double x) {
; int64_t result;
; __asm__ __volatile__("fctid %0, %1"
; : "=d"(result)
; : "d"(x)
; : /* No clobbers */);
; return result;
; }
define signext i32 @bar(double %x) #0 {
; CHECK-LABEL: @bar
; CHECK: fctid 0, 1
entry:
%x.addr = alloca double, align 8
%result = alloca i64, align 8
store double %x, ptr %x.addr, align 8
%0 = load double, ptr %x.addr, align 8
%1 = call i64 asm sideeffect "fctid $0, $1", "=d,d"(double %0) #1, !srcloc !1
store i64 %1, ptr %result, align 8
%2 = load i64, ptr %result, align 8
%conv = trunc i64 %2 to i32
ret i32 %conv
}
attributes #0 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="ppc64le" "target-features"="+altivec,+bpermd,+crypto,+direct-move,+extdiv,+power8-vector,+vsx" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind }
!0 = !{i32 67, i32 91, i32 110, i32 126}
!1 = !{i32 84}