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| author | Tom Stellard <thomas.stellard@amd.com> | 2014-03-24 18:21:32 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2014-03-24 18:21:32 +0000 |
| commit | 3e1bcea5d089c031e520c135d882d7c0f8c71aba (patch) | |
| tree | 940491debe957708f450690ae34ffebe91605ea5 | |
| parent | ff1afeb16df041f870fffbae5b23167a950b590b (diff) | |
| download | llvm-3e1bcea5d089c031e520c135d882d7c0f8c71aba.tar.gz llvm-3e1bcea5d089c031e520c135d882d7c0f8c71aba.tar.bz2 llvm-3e1bcea5d089c031e520c135d882d7c0f8c71aba.tar.xz | |
Merging r200283:
------------------------------------------------------------------------
r200283 | michel.daenzer | 2014-01-27 19:01:16 -0800 (Mon, 27 Jan 2014) | 6 lines
R600/SI: Add pattern for truncating i32 to i1
Fixes half a dozen piglit tests with radeonsi.
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@204642 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/R600/SIInstructions.td | 5 | ||||
| -rw-r--r-- | test/CodeGen/R600/trunc.ll | 10 |
2 files changed, 15 insertions, 0 deletions
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td index 88f6b0d8f6..6d38481cd2 100644 --- a/lib/Target/R600/SIInstructions.td +++ b/lib/Target/R600/SIInstructions.td @@ -2111,6 +2111,11 @@ def : Pat < (EXTRACT_SUBREG $a, sub0) >; +def : Pat < + (i1 (trunc i32:$a)), + (V_CMP_EQ_I32_e64 (V_AND_B32_e32 (i32 1), $a), 1) +>; + // V_ADD_I32_e32/S_ADD_I32 produces carry in VCC/SCC. For the vector // case, the sgpr-copies pass will fix this to use the vector version. def : Pat < diff --git a/test/CodeGen/R600/trunc.ll b/test/CodeGen/R600/trunc.ll index 0bd320ad9c..6bbd7f7b51 100644 --- a/test/CodeGen/R600/trunc.ll +++ b/test/CodeGen/R600/trunc.ll @@ -28,3 +28,13 @@ define void @trunc_shl_i64(i32 addrspace(1)* %out, i64 %a) { store i32 %result, i32 addrspace(1)* %out, align 4 ret void } + +; SI-LABEL: @trunc_i32_to_i1: +; SI: V_AND_B32 +; SI: V_CMP_EQ_I32 +define void @trunc_i32_to_i1(i32 addrspace(1)* %out, i32 %a) { + %trunc = trunc i32 %a to i1 + %result = select i1 %trunc, i32 1, i32 0 + store i32 %result, i32 addrspace(1)* %out, align 4 + ret void +} |