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94473f4db6
Generate nuw GEPs for struct member accesses, as inbounds + non-negative implies nuw. Regression tests are updated using update scripts where possible, and by find + replace where not.
170 lines
6.8 KiB
Plaintext
170 lines
6.8 KiB
Plaintext
// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -std=c++11 \
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// RUN: -emit-llvm -o - -x hip %s | FileCheck \
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// RUN: -check-prefixes=COMMON,DEV,NORDC-D %s
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device -std=c++11 \
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// RUN: -emit-llvm -fgpu-rdc -cuid=abc -o - -x hip %s > %t.dev
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// RUN: cat %t.dev | FileCheck -check-prefixes=COMMON,DEV,RDC-D %s
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// RUN: %clang_cc1 -triple x86_64-gnu-linux -std=c++11 \
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// RUN: -emit-llvm -o - -x hip %s | FileCheck \
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// RUN: -check-prefixes=COMMON,HOST,NORDC %s
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// RUN: %clang_cc1 -triple x86_64-gnu-linux -std=c++11 \
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// RUN: -emit-llvm -fgpu-rdc -cuid=abc -o - -x hip %s > %t.host
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// RUN: cat %t.host | FileCheck -check-prefixes=COMMON,HOST,RDC %s
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// Check device and host compilation use the same postfix for static
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// variable name.
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// RUN: cat %t.dev %t.host | FileCheck -check-prefix=POSTFIX %s
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#include "Inputs/cuda.h"
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struct vec {
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float x,y,z;
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};
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// DEV-DAG: @x.managed = addrspace(1) externally_initialized global i32 1, align 4
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// DEV-DAG: @x = addrspace(1) externally_initialized global ptr addrspace(1) null
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// NORDC-DAG: @x.managed = internal global i32 1
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// RDC-DAG: @x.managed = global i32 1
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// NORDC-DAG: @x = internal externally_initialized global ptr null
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// RDC-DAG: @x = externally_initialized global ptr null
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// HOST-DAG: @[[DEVNAMEX:[0-9]+]] = {{.*}}c"x\00"
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__managed__ int x = 1;
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// DEV-DAG: @v.managed = addrspace(1) externally_initialized global [100 x %struct.vec] zeroinitializer, align 4
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// DEV-DAG: @v = addrspace(1) externally_initialized global ptr addrspace(1) null
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__managed__ vec v[100];
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// DEV-DAG: @v2.managed = addrspace(1) externally_initialized global <{ %struct.vec, [99 x %struct.vec] }> <{ %struct.vec { float 1.000000e+00, float 1.000000e+00, float 1.000000e+00 }, [99 x %struct.vec] zeroinitializer }>, align 4
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// DEV-DAG: @v2 = addrspace(1) externally_initialized global ptr addrspace(1) null
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__managed__ vec v2[100] = {{1, 1, 1}};
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// DEV-DAG: @ex.managed = external addrspace(1) global i32, align 4
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// DEV-DAG: @ex = external addrspace(1) externally_initialized global ptr addrspace(1)
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// HOST-DAG: @ex.managed = external global i32
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// HOST-DAG: @ex = external externally_initialized global ptr
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extern __managed__ int ex;
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// NORDC-D-DAG: @_ZL2sx.managed = addrspace(1) externally_initialized global i32 1, align 4
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// NORDC-D-DAG: @_ZL2sx = addrspace(1) externally_initialized global ptr addrspace(1) null
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// RDC-D-DAG: @_ZL2sx.static.[[HASH:.*]].managed = addrspace(1) externally_initialized global i32 1, align 4
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// RDC-D-DAG: @_ZL2sx.static.[[HASH]] = addrspace(1) externally_initialized global ptr addrspace(1) null
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// HOST-DAG: @_ZL2sx.managed = internal global i32 1
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// HOST-DAG: @_ZL2sx = internal externally_initialized global ptr null
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// NORDC-DAG: @[[DEVNAMESX:[0-9]+]] = {{.*}}c"_ZL2sx\00"
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// RDC-DAG: @[[DEVNAMESX:[0-9]+]] = {{.*}}c"_ZL2sx.static.[[HASH:.*]]\00"
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// POSTFIX: @_ZL2sx.static.[[HASH:.*]] = addrspace(1) externally_initialized global ptr addrspace(1) null
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// POSTFIX: @[[DEVNAMESX:[0-9]+]] = {{.*}}c"_ZL2sx.static.[[HASH]]\00"
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static __managed__ int sx = 1;
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// DEV-DAG: @llvm.compiler.used
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// DEV-SAME-DAG: @x.managed
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// DEV-SAME-DAG: @x
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// DEV-SAME-DAG: @v.managed
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// DEV-SAME-DAG: @v
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// DEV-SAME-DAG: @_ZL2sx.managed
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// DEV-SAME-DAG: @_ZL2sx
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// Force ex and sx mitted in device compilation.
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__global__ void foo(int *z) {
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*z = x + ex + sx;
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v[1].x = 2;
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}
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// Force ex and sx emitted in host compilatioin.
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int foo2() {
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return ex + sx;
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}
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// COMMON-LABEL: define {{.*}}@_Z4loadv()
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// DEV: %ld.managed = load ptr addrspace(1), ptr addrspace(1) @x, align 4
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// DEV: %0 = addrspacecast ptr addrspace(1) %ld.managed to ptr
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// DEV: %1 = load i32, ptr %0, align 4
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// DEV: ret i32 %1
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// HOST: %ld.managed = load ptr, ptr @x, align 4
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// HOST: %0 = load i32, ptr %ld.managed, align 4
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// HOST: ret i32 %0
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__device__ __host__ int load() {
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return x;
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}
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// COMMON-LABEL: define {{.*}}@_Z5storev()
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// DEV: %ld.managed = load ptr addrspace(1), ptr addrspace(1) @x, align 4
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// DEV: %0 = addrspacecast ptr addrspace(1) %ld.managed to ptr
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// DEV: store i32 2, ptr %0, align 4
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// HOST: %ld.managed = load ptr, ptr @x, align 4
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// HOST: store i32 2, ptr %ld.managed, align 4
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__device__ __host__ void store() {
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x = 2;
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}
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// COMMON-LABEL: define {{.*}}@_Z10addr_takenv()
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// DEV: %0 = addrspacecast ptr addrspace(1) %ld.managed to ptr
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// DEV: store ptr %0, ptr %p.ascast, align 8
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// DEV: %1 = load ptr, ptr %p.ascast, align 8
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// DEV: store i32 3, ptr %1, align 4
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// HOST: %ld.managed = load ptr, ptr @x, align 4
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// HOST: store ptr %ld.managed, ptr %p, align 8
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// HOST: %0 = load ptr, ptr %p, align 8
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// HOST: store i32 3, ptr %0, align 4
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__device__ __host__ void addr_taken() {
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int *p = &x;
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*p = 3;
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}
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// HOST-LABEL: define {{.*}}@_Z5load2v()
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// HOST: %ld.managed = load ptr, ptr @v, align 16
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// HOST: %0 = getelementptr inbounds [100 x %struct.vec], ptr %ld.managed, i64 0, i64 1
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// HOST: %1 = load float, ptr %0, align 4
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// HOST: ret float %1
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__device__ __host__ float load2() {
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return v[1].x;
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}
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// HOST-LABEL: define {{.*}}@_Z5load3v()
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// HOST: %ld.managed = load ptr, ptr @v2, align 16
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// HOST: %0 = getelementptr inbounds [100 x %struct.vec], ptr %ld.managed, i64 0, i64 1
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// HOST: %1 = getelementptr inbounds nuw %struct.vec, ptr %0, i32 0, i32 1
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// HOST: %2 = load float, ptr %1, align 4
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// HOST: ret float %2
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float load3() {
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return v2[1].y;
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}
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// HOST-LABEL: define {{.*}}@_Z11addr_taken2v()
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// HOST: %ld.managed = load ptr, ptr @v, align 16
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// HOST: %0 = getelementptr inbounds [100 x %struct.vec], ptr %ld.managed, i64 0, i64 1
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// HOST: %1 = ptrtoint ptr %0 to i64
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// HOST: %ld.managed1 = load ptr, ptr @v2, align 16
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// HOST: %2 = getelementptr inbounds [100 x %struct.vec], ptr %ld.managed1, i64 0, i64 1
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// HOST: %3 = getelementptr inbounds nuw %struct.vec, ptr %2, i32 0, i32 1
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// HOST: %4 = ptrtoint ptr %3 to i64
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// HOST: %5 = sub i64 %4, %1
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// HOST: %sub.ptr.div = sdiv exact i64 %5, 4
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// HOST: %conv = sitofp i64 %sub.ptr.div to float
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// HOST: ret float %conv
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float addr_taken2() {
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return (float)reinterpret_cast<long>(&(v2[1].y)-&(v[1].x));
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}
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// COMMON-LABEL: define {{.*}}@_Z5load4v()
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// DEV: %ld.managed = load ptr addrspace(1), ptr addrspace(1) @ex, align 4
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// DEV: %0 = addrspacecast ptr addrspace(1) %ld.managed to ptr
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// DEV: %1 = load i32, ptr %0, align 4
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// DEV: ret i32 %1
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// HOST: %ld.managed = load ptr, ptr @ex, align 4
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// HOST: %0 = load i32, ptr %ld.managed, align 4
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// HOST: ret i32 %0
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__device__ __host__ int load4() {
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return ex;
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}
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// HOST-DAG: __hipRegisterManagedVar({{.*}}, ptr @x, ptr @x.managed, ptr @[[DEVNAMEX]], i64 4, i32 4)
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// HOST-DAG: __hipRegisterManagedVar({{.*}}, ptr @_ZL2sx, ptr @_ZL2sx.managed, ptr @[[DEVNAMESX]]
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// HOST-NOT: __hipRegisterManagedVar({{.*}}, ptr @ex, ptr @ex.managed
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// HOST-DAG: declare void @__hipRegisterManagedVar(ptr, ptr, ptr, ptr, i64, i32)
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