| // REQUIRES: amdgpu-registered-target |
| |
| // Check that the default wavefront size is determined by the triple's subarch |
| // alone, with no -target-cpu. Clang only emits a wavefrontsize target-feature |
| // when it differs from the target default, so passing -target-feature |
| // +wavefrontsizeN shows up in the IR target-features attribute exactly when N is |
| // NOT the subarch default. gfx9 defaults to wave64; gfx10/gfx11/gfx12 default to |
| // wave32. |
| |
| // gfx9 default is wave64: +wavefrontsize64 matches the default and is elided, |
| // while +wavefrontsize32 is rejected because gfx9 is wave64 only. |
| // RUN: %clang_cc1 -triple amdgpu9.00 -target-feature +wavefrontsize64 -emit-llvm -o - %s | FileCheck --check-prefix=NO-DELTA %s |
| // RUN: not %clang_cc1 -triple amdgpu9.00 -target-feature +wavefrontsize32 -emit-llvm -o /dev/null %s 2>&1 | FileCheck --check-prefix=ERR-WAVE32 %s |
| // The gfx9 major-family subarch behaves the same as its members. |
| // RUN: %clang_cc1 -triple amdgpu9 -target-feature +wavefrontsize64 -emit-llvm -o - %s | FileCheck --check-prefix=NO-DELTA %s |
| |
| // gfx11 default is wave32: +wavefrontsize64 is a delta and is emitted, while |
| // +wavefrontsize32 matches the default and is elided. |
| // RUN: %clang_cc1 -triple amdgpu11.00 -target-feature +wavefrontsize64 -emit-llvm -o - %s | FileCheck --check-prefix=WAVE64-DELTA %s |
| // RUN: %clang_cc1 -triple amdgpu11.00 -target-feature +wavefrontsize32 -emit-llvm -o - %s | FileCheck --check-prefix=NO-DELTA %s |
| // RUN: %clang_cc1 -triple amdgpu11 -target-feature +wavefrontsize64 -emit-llvm -o - %s | FileCheck --check-prefix=WAVE64-DELTA %s |
| |
| // gfx1250 is wave32 only: +wavefrontsize64 is rejected. |
| // RUN: not %clang_cc1 -triple amdgpu12.50 -target-feature +wavefrontsize64 -emit-llvm -o /dev/null %s 2>&1 | FileCheck --check-prefix=ERR-WAVE64 %s |
| |
| // A amdgpu triple with no subarch and no -target-cpu has no default wave size, |
| // so both overrides are accepted and emitted verbatim. |
| // RUN: %clang_cc1 -triple amdgpu -target-feature +wavefrontsize64 -emit-llvm -o - %s | FileCheck --check-prefix=WAVE64-DELTA %s |
| // RUN: %clang_cc1 -triple amdgpu -target-feature +wavefrontsize32 -emit-llvm -o - %s | FileCheck --check-prefix=WAVE32-DELTA %s |
| |
| kernel void foo() {} |
| |
| // NO-DELTA-NOT: "target-features" |
| // WAVE64-DELTA: "target-features"="{{[^"]*}}+wavefrontsize64{{[^"]*}}" |
| // WAVE32-DELTA: "target-features"="{{[^"]*}}+wavefrontsize32{{[^"]*}}" |
| // ERR-WAVE32: error: option '+wavefrontsize32' cannot be specified on this target |
| // ERR-WAVE64: error: option '+wavefrontsize64' cannot be specified on this target |
