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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-10-10 18:04:16 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-10-10 18:04:16 +0000 |
| commit | 1cc41bf63c7ed5c789932cd9e202a2182cbf00e9 (patch) | |
| tree | 105d0327fff434951d43da77533a0f0a5576e530 | |
| parent | a7d9a5d64a89ef8532fcf38cc8a57960d48e283e (diff) | |
| download | external_llvm-1cc41bf63c7ed5c789932cd9e202a2182cbf00e9.zip external_llvm-1cc41bf63c7ed5c789932cd9e202a2182cbf00e9.tar.gz external_llvm-1cc41bf63c7ed5c789932cd9e202a2182cbf00e9.tar.bz2 | |
R600: Fix trunc i64 to i32 on SI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192375 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/R600/SIInstructions.td | 5 | ||||
| -rw-r--r-- | test/CodeGen/R600/trunc.ll | 12 |
2 files changed, 17 insertions, 0 deletions
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td index d9cf1e5..c0db7f9 100644 --- a/lib/Target/R600/SIInstructions.td +++ b/lib/Target/R600/SIInstructions.td @@ -851,6 +851,11 @@ def : Pat < (V_CNDMASK_B32_e64 $src0, $src1, $src2) >; +def : Pat < + (i32 (trunc i64:$val)), + (EXTRACT_SUBREG $val, sub0) +>; + //use two V_CNDMASK_B32_e64 instructions for f64 def : Pat < (f64 (select i1:$src2, f64:$src1, f64:$src0)), diff --git a/test/CodeGen/R600/trunc.ll b/test/CodeGen/R600/trunc.ll index 1fbe720..be7a430 100644 --- a/test/CodeGen/R600/trunc.ll +++ b/test/CodeGen/R600/trunc.ll @@ -17,3 +17,15 @@ define void @trunc_i64_to_i32_store(i32 addrspace(1)* %out, i64 %in) { ret void } +; SI-LABEL: @trunc_shl_i64: +; SI: S_LOAD_DWORDX2 +; SI: S_LOAD_DWORDX2 [[SREG:SGPR[0-9]+_SGPR[0-9]+]] +; SI: V_LSHL_B64 [[LO_VREG:VGPR[0-9]+]]_VGPR{{[0-9]+}}, [[SREG]], 2 +; SI-NOT: [[LO_VREG]] +; SI: BUFFER_STORE_DWORD [[LO_VREG]], +define void @trunc_shl_i64(i32 addrspace(1)* %out, i64 %a) { + %b = shl i64 %a, 2 + %result = trunc i64 %b to i32 + store i32 %result, i32 addrspace(1)* %out, align 4 + ret void +} |