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author | Dale Johannesen <dalej@apple.com> | 2007-05-03 20:54:42 +0000 |
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committer | Dale Johannesen <dalej@apple.com> | 2007-05-03 20:54:42 +0000 |
commit | 4ac075c859ec0b03d61229bca3517a6801ac63ab (patch) | |
tree | 883b5c7beb79d09ebacc3320e6c85b6e97ed5efa | |
parent | e8e5495474d67cd5151bd88e502be3f46ace7a85 (diff) | |
download | llvm-4ac075c859ec0b03d61229bca3517a6801ac63ab.tar.gz llvm-4ac075c859ec0b03d61229bca3517a6801ac63ab.tar.bz2 llvm-4ac075c859ec0b03d61229bca3517a6801ac63ab.tar.xz |
Evan's patch to avoid FPreg->intreg copy for cvt; store to mem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36693 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Target/ARM/ARMInstrVFP.td | 5 | ||||
-rw-r--r-- | test/CodeGen/ARM/fptoint.ll | 33 |
2 files changed, 38 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrVFP.td b/lib/Target/ARM/ARMInstrVFP.td index 671e1a48c1..a8a72ed72c 100644 --- a/lib/Target/ARM/ARMInstrVFP.td +++ b/lib/Target/ARM/ARMInstrVFP.td @@ -78,6 +78,11 @@ def FSTS : ASI5<(ops SPR:$src, addrmode5:$addr), [(store SPR:$src, addrmode5:$addr)]>; } // isStore +// avoid copying result of FTOUIZ to int reg when we're just storing it +let AddedComplexity = 1 in +def : ARMPat<(store (i32 (bitconvert SPR:$src)), addrmode5:$addr), + (FSTS SPR:$src, addrmode5:$addr)>; + //===----------------------------------------------------------------------===// // Load / store multiple Instructions. // diff --git a/test/CodeGen/ARM/fptoint.ll b/test/CodeGen/ARM/fptoint.ll new file mode 100644 index 0000000000..45be89c4d8 --- /dev/null +++ b/test/CodeGen/ARM/fptoint.ll @@ -0,0 +1,33 @@ +; RUN: llvm-as < %s | llc -march=arm -mattr=+v6,+vfp2 > %t +; RUN: not grep fmrs %t + +@i = weak global i32 0 ; <i32*> [#uses=2] +@u = weak global i32 0 ; <i32*> [#uses=2] + +define void @foo5(float %x) { +entry: + %tmp1 = fptosi float %x to i32 ; <i32> [#uses=1] + store i32 %tmp1, i32* @i + ret void +} + +define void @foo6(float %x) { +entry: + %tmp1 = fptoui float %x to i32 ; <i32> [#uses=1] + store i32 %tmp1, i32* @u + ret void +} + +define void @foo7(double %x) { +entry: + %tmp1 = fptosi double %x to i32 ; <i32> [#uses=1] + store i32 %tmp1, i32* @i + ret void +} + +define void @foo8(double %x) { +entry: + %tmp1 = fptoui double %x to i32 ; <i32> [#uses=1] + store i32 %tmp1, i32* @u + ret void +} |