| // REQUIRES: amdgpu-registered-target |
| |
| // Test that by default, AMDGPU functions only emit delta target-features |
| // (features that differ from the target CPU's defaults). This reduces IR bloat. |
| |
| // Default behavior for gfx90a: test_default has no target-features, |
| // test_explicit_attr has only the delta (+gfx11-insts). |
| // RUN: %clang_cc1 -triple amdgpu9.0a -emit-llvm -o - %s | FileCheck --check-prefix=GFX90A %s |
| |
| // With -target-feature, both functions get the delta feature. |
| // gfx1030 defaults to wavefrontsize32, so +wavefrontsize64 is a delta. |
| // RUN: %clang_cc1 -triple amdgpu10.30 -target-feature +wavefrontsize64 -emit-llvm -o - %s | FileCheck --check-prefix=CMDLINE %s |
| |
| // GFX90A-LABEL: define {{.*}} @test_default() |
| // GFX90A-SAME: #[[ATTR_DEFAULT:[0-9]+]] |
| // GFX90A-LABEL: define {{.*}} @test_explicit_attr() |
| // GFX90A-SAME: #[[ATTR_EXPLICIT:[0-9]+]] |
| // |
| // The processor is encoded in the triple's subarch, so there is no |
| // target-cpu attribute. test_default has NO target-features. |
| // GFX90A: attributes #[[ATTR_DEFAULT]] = { |
| // GFX90A-NOT: "target-cpu" |
| // GFX90A-NOT: "target-features" |
| // GFX90A-SAME: } |
| // |
| // test_explicit_attr should have ONLY the delta target-features |
| // GFX90A: attributes #[[ATTR_EXPLICIT]] = { |
| // GFX90A-NOT: "target-cpu" |
| // GFX90A-SAME: "target-features"="+gfx11-insts" |
| // GFX90A-SAME: } |
| |
| // With -target-feature +wavefrontsize64, test_default gets just that delta, |
| // test_explicit_attr gets both +gfx11-insts and +wavefrontsize64. |
| // CMDLINE-LABEL: define {{.*}} @test_default() |
| // CMDLINE-SAME: #[[ATTR_DEFAULT:[0-9]+]] |
| // CMDLINE-LABEL: define {{.*}} @test_explicit_attr() |
| // CMDLINE-SAME: #[[ATTR_EXPLICIT:[0-9]+]] |
| // |
| // CMDLINE: attributes #[[ATTR_DEFAULT]] = { |
| // CMDLINE-NOT: "target-cpu" |
| // CMDLINE-SAME: "target-features"="+wavefrontsize64" |
| // CMDLINE-SAME: } |
| // |
| // CMDLINE: attributes #[[ATTR_EXPLICIT]] = { |
| // CMDLINE-NOT: "target-cpu" |
| // CMDLINE-SAME: "target-features"="{{[^"]*}}+gfx11-insts{{[^"]*}}+wavefrontsize64{{[^"]*}}" |
| // CMDLINE-SAME: } |
| |
| kernel void test_default() {} |
| |
| __attribute__((target("gfx11-insts"))) |
| void test_explicit_attr() {} |
