forked from OSchip/llvm-project
132 lines
5.4 KiB
C
132 lines
5.4 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | \
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// RUN: FileCheck %s
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// This test validates that the inreg branch generation for __builtin_va_arg
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// does not exceed the alloca size of the type, which can cause the SROA pass to
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// eliminate the assignment.
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typedef struct { float x, y, z; } vec3f;
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double Vec3FTest(__builtin_va_list ap) {
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vec3f vec = __builtin_va_arg(ap, vec3f);
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return vec.x + vec.y + vec.z;
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}
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// CHECK: define double @Vec3FTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec3FLoad1:%.*]] = load <2 x float>, <2 x float>*
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// CHECK: [[Vec3FGEP1:%.*]] = getelementptr inbounds { <2 x float>, float }, { <2 x float>, float }* {{%.*}}, i32 0, i32 0
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// CHECK: store <2 x float> [[Vec3FLoad1]], <2 x float>* [[Vec3FGEP1]]
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// CHECK: [[Vec3FLoad2:%.*]] = load float, float*
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// CHECK: [[Vec3FGEP2:%.*]] = getelementptr inbounds { <2 x float>, float }, { <2 x float>, float }* {{%.*}}, i32 0, i32 1
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// CHECK: store float [[Vec3FLoad2]], float* [[Vec3FGEP2]]
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// CHECK: vaarg.in_mem:
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typedef struct { float x, y, z, q; } vec4f;
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double Vec4FTest(__builtin_va_list ap) {
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vec4f vec = __builtin_va_arg(ap, vec4f);
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return vec.x + vec.y + vec.z + vec.q;
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}
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// CHECK: define double @Vec4FTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec4FLoad1:%.*]] = load <2 x float>, <2 x float>*
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// CHECK: [[Vec4FGEP1:%.*]] = getelementptr inbounds { <2 x float>, <2 x float> }, { <2 x float>, <2 x float> }* {{%.*}}, i32 0, i32 0
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// CHECK: store <2 x float> [[Vec4FLoad1]], <2 x float>* [[Vec4FGEP1]]
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// CHECK: [[Vec4FLoad2:%.*]] = load <2 x float>, <2 x float>*
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// CHECK: [[Vec4FGEP2:%.*]] = getelementptr inbounds { <2 x float>, <2 x float> }, { <2 x float>, <2 x float> }* {{%.*}}, i32 0, i32 1
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// CHECK: store <2 x float> [[Vec4FLoad2]], <2 x float>* [[Vec4FGEP2]]
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// CHECK: vaarg.in_mem:
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typedef struct { double x, y; } vec2d;
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double Vec2DTest(__builtin_va_list ap) {
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vec2d vec = __builtin_va_arg(ap, vec2d);
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return vec.x + vec.y;
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}
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// CHECK: define double @Vec2DTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec2DLoad1:%.*]] = load double, double*
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// CHECK: [[Vec2DGEP1:%.*]] = getelementptr inbounds { double, double }, { double, double }* {{%.*}}, i32 0, i32 0
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// CHECK: store double [[Vec2DLoad1]], double* [[Vec2DGEP1]]
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// CHECK: [[Vec2DLoad2:%.*]] = load double, double*
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// CHECK: [[Vec2DGEP2:%.*]] = getelementptr inbounds { double, double }, { double, double }* {{%.*}}, i32 0, i32 1
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// CHECK: store double [[Vec2DLoad2]], double* [[Vec2DGEP2]]
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// CHECK: vaarg.in_mem:
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typedef struct {
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float x, y;
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double z;
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} vec2f1d;
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double Vec2F1DTest(__builtin_va_list ap) {
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vec2f1d vec = __builtin_va_arg(ap, vec2f1d);
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return vec.x + vec.y + vec.z;
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}
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// CHECK: define double @Vec2F1DTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec2F1DLoad1:%.*]] = load <2 x float>, <2 x float>*
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// CHECK: [[Vec2F1DGEP1:%.*]] = getelementptr inbounds { <2 x float>, double }, { <2 x float>, double }* {{%.*}}, i32 0, i32 0
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// CHECK: store <2 x float> [[Vec2F1DLoad1]], <2 x float>* [[Vec2F1DGEP1]]
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// CHECK: [[Vec2F1DLoad2:%.*]] = load double, double*
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// CHECK: [[Vec2F1DGEP2:%.*]] = getelementptr inbounds { <2 x float>, double }, { <2 x float>, double }* {{%.*}}, i32 0, i32 1
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// CHECK: store double [[Vec2F1DLoad2]], double* [[Vec2F1DGEP2]]
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// CHECK: vaarg.in_mem:
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typedef struct {
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double x;
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float y, z;
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} vec1d2f;
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double Vec1D2FTest(__builtin_va_list ap) {
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vec1d2f vec = __builtin_va_arg(ap, vec1d2f);
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return vec.x + vec.y + vec.z;
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}
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// CHECK: define double @Vec1D2FTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec1D2FLoad1:%.*]] = load double, double*
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// CHECK: [[Vec1D2FGEP1:%.*]] = getelementptr inbounds { double, <2 x float> }, { double, <2 x float> }* {{%.*}}, i32 0, i32 0
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// CHECK: store double [[Vec1D2FLoad1]], double* [[Vec1D2FGEP1]]
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// CHECK: [[Vec1D2FLoad2:%.*]] = load <2 x float>, <2 x float>*
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// CHECK: [[Vec1D2FGEP2:%.*]] = getelementptr inbounds { double, <2 x float> }, { double, <2 x float> }* {{%.*}}, i32 0, i32 1
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// CHECK: store <2 x float> [[Vec1D2FLoad2]], <2 x float>* [[Vec1D2FGEP2]]
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// CHECK: vaarg.in_mem:
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typedef struct {
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float x;
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double z;
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} vec1f1d;
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double Vec1F1DTest(__builtin_va_list ap) {
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vec1f1d vec = __builtin_va_arg(ap, vec1f1d);
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return vec.x + vec.z;
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}
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// CHECK: define double @Vec1F1DTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec1F1DLoad1:%.*]] = load float, float*
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// CHECK: [[Vec1F1DGEP1:%.*]] = getelementptr inbounds { float, double }, { float, double }* {{%.*}}, i32 0, i32 0
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// CHECK: store float [[Vec1F1DLoad1]], float* [[Vec1F1DGEP1]]
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// CHECK: [[Vec1F1DLoad2:%.*]] = load double, double*
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// CHECK: [[Vec1F1DGEP2:%.*]] = getelementptr inbounds { float, double }, { float, double }* {{%.*}}, i32 0, i32 1
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// CHECK: store double [[Vec1F1DLoad2]], double* [[Vec1F1DGEP2]]
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// CHECK: vaarg.in_mem:
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typedef struct {
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double x;
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float z;
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} vec1d1f;
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double Vec1D1FTest(__builtin_va_list ap) {
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vec1d1f vec = __builtin_va_arg(ap, vec1d1f);
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return vec.x + vec.z;
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}
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// CHECK: define double @Vec1D1FTest
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// CHECK: vaarg.in_reg:
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// CHECK: [[Vec1D1FLoad1:%.*]] = load double, double*
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// CHECK: [[Vec1D1FGEP1:%.*]] = getelementptr inbounds { double, float }, { double, float }* {{%.*}}, i32 0, i32 0
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// CHECK: store double [[Vec1D1FLoad1]], double* [[Vec1D1FGEP1]]
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// CHECK: [[Vec1D1FLoad2:%.*]] = load float, float*
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// CHECK: [[Vec1D1FGEP2:%.*]] = getelementptr inbounds { double, float }, { double, float }* {{%.*}}, i32 0, i32 1
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// CHECK: store float [[Vec1D1FLoad2]], float* [[Vec1D1FGEP2]]
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// CHECK: vaarg.in_mem:
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