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| author | cdevadas <cdevadas@amd.com> | 2020-01-10 22:23:27 +0530 |
|---|---|---|
| committer | cdevadas <cdevadas@amd.com> | 2020-01-15 15:18:16 +0530 |
| commit | 0dc6c249bffac9f23a605ce4e42a84341da3ddbd (patch) | |
| tree | 113cc776987199087010ef82f8fd4728b06d0c8b /llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll | |
| parent | 064859bde79ccd221fd5196fd2d889014c5435c4 (diff) | |
| download | bcm5719-llvm-0dc6c249bffac9f23a605ce4e42a84341da3ddbd.tar.gz bcm5719-llvm-0dc6c249bffac9f23a605ce4e42a84341da3ddbd.zip | |
[AMDGPU] Invert the handling of skip insertion.
The current implementation of skip insertion (SIInsertSkip) makes it a
mandatory pass required for correctness. Initially, the idea was to
have an optional pass. This patch inserts the s_cbranch_execz upfront
during SILowerControlFlow to skip over the sections of code when no
lanes are active. Later, SIRemoveShortExecBranches removes the skips
for short branches, unless there is a sideeffect and the skip branch is
really necessary.
This new pass will replace the handling of skip insertion in the
existing SIInsertSkip Pass.
Differential revision: https://reviews.llvm.org/D68092
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll b/llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll index a99d18147cc..e854c089268 100644 --- a/llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll +++ b/llvm/test/CodeGen/AMDGPU/si-annotate-cf-noloop.ll @@ -40,8 +40,6 @@ bb5: ; preds = %bb3, %bb1 ; GCN: load_dwordx4 ; GCN: v_cmp_nlt_f32 ; GCN: s_and_saveexec_b64 -; GCN: ; mask branch [[UNIFIED_RET:BB[0-9]+_[0-9]+]] -; GCN-NEXT: [[UNIFIED_RET]]: ; GCN-NEXT: s_endpgm ; GCN: .Lfunc_end define amdgpu_kernel void @annotate_ret_noloop(<4 x float> addrspace(1)* noalias nocapture readonly %arg) #0 { |
