diff options
| 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 | 204cfa6e43465e5bf291b79f47c9dfa4ec4558df (patch) | |
| tree | f8a214022311a7b5a0db6ef43471673fa8ac258f | |
| parent | d219231de5e85debee4ecf429a73bf562657e03d (diff) | |
| download | bcm5719-llvm-204cfa6e43465e5bf291b79f47c9dfa4ec4558df.tar.gz bcm5719-llvm-204cfa6e43465e5bf291b79f47c9dfa4ec4558df.zip | |
R600: Fix trunc i64 to i32 on SI
llvm-svn: 192375
| -rw-r--r-- | llvm/lib/Target/R600/SIInstructions.td | 5 | ||||
| -rw-r--r-- | llvm/test/CodeGen/R600/trunc.ll | 12 |
2 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/Target/R600/SIInstructions.td b/llvm/lib/Target/R600/SIInstructions.td index d9cf1e5c571..c0db7f9c2b0 100644 --- a/llvm/lib/Target/R600/SIInstructions.td +++ b/llvm/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/llvm/test/CodeGen/R600/trunc.ll b/llvm/test/CodeGen/R600/trunc.ll index 1fbe7205fbb..be7a430885f 100644 --- a/llvm/test/CodeGen/R600/trunc.ll +++ b/llvm/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 +} |
