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| author | Eli Friedman <eli.friedman@gmail.com> | 2012-04-05 21:48:40 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2012-04-05 21:48:40 +0000 |
| commit | 87b9c0311f96c35109204a49d4bda909aa72b62a (patch) | |
| tree | ca07771fbf1b7fded9ba7f111c0b344d8cafebeb /test/CodeGen | |
| parent | 6fd4505ad67a186da8cc26fdb493c93fe4937555 (diff) | |
Make the variant of __builtin_shufflevector that takes the shuffle indexes as a vector actually usable. Patch by David Neto. PR12465.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154128 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/builtinshufflevector2.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeGen/builtinshufflevector2.c b/test/CodeGen/builtinshufflevector2.c new file mode 100644 index 0000000000..faf7a3ec1a --- /dev/null +++ b/test/CodeGen/builtinshufflevector2.c @@ -0,0 +1,35 @@ +// RUN: %clang -emit-llvm -S -o - %s | FileCheck %s + +typedef float float4 __attribute__((ext_vector_type(4))); +typedef unsigned int uint4 __attribute__((ext_vector_type(4))); + +// CHECK: define void @clang_shufflevector_v_v( +void clang_shufflevector_v_v( float4* A, float4 x, uint4 mask ) { +// CHECK: [[MASK:%.*]] = and <4 x i32> {{%.*}}, <i32 3, i32 3, i32 3, i32 3> +// CHECK: [[I:%.*]] = extractelement <4 x i32> [[MASK]], i32 0 +// CHECK: [[E:%.*]] = extractelement <4 x float> [[X:%.*]], i32 [[I]] +// +// Here is where ToT Clang code generation makes a mistake. +// It uses [[I]] as the insertion index instead of 0. +// Similarly on the remaining insertelement. +// CHECK: [[V:%[a-zA-Z0-9._]+]] = insertelement <4 x float> undef, float [[E]], i32 0 + +// CHECK: [[I:%.*]] = extractelement <4 x i32> [[MASK]], i32 1 +// CHECK: [[E:%.*]] = extractelement <4 x float> [[X]], i32 [[I]] +// CHECK: [[V:%.*]] = insertelement <4 x float> [[V]], float [[E]], i32 1 +// CHECK: [[I:%.*]] = extractelement <4 x i32> [[MASK]], i32 2 +// CHECK: [[E:%.*]] = extractelement <4 x float> [[X]], i32 [[I]] +// CHECK: [[V:%.*]] = insertelement <4 x float> [[V]], float [[E]], i32 2 +// CHECK: [[I:%.*]] = extractelement <4 x i32> [[MASK]], i32 3 +// CHECK: [[E:%.*]] = extractelement <4 x float> [[X]], i32 [[I]] +// CHECK: [[V:%.*]] = insertelement <4 x float> [[V]], float [[E]], i32 3 +// CHECK: store <4 x float> [[V]], <4 x float>* {{%.*}}, + *A = __builtin_shufflevector( x, mask ); +} + +// CHECK: define void @clang_shufflevector_v_v_c( +void clang_shufflevector_v_v_c( float4* A, float4 x, float4 y, uint4 mask ) { +// CHECK: [[V:%.*]] = shufflevector <4 x float> {{%.*}}, <4 x float> {{%.*}}, <4 x i32> <i32 0, i32 4, i32 1, i32 5> +// CHECK: store <4 x float> [[V]], <4 x float>* {{%.*}} + *A = __builtin_shufflevector( x, y, 0, 4, 1, 5 ); +} |