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| author | Evan Cheng <evan.cheng@apple.com> | 2009-07-21 00:31:12 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-07-21 00:31:12 +0000 |
| commit | 0d8b0cf3b850d1f627e16bbf890ec43df1021ed9 (patch) | |
| tree | 5ec65b95f60736f63c33a923437764a346bec742 /llvm/test/CodeGen/ARM/mul_const.ll | |
| parent | 9a47392f2e556cc514d198d1406f6bf983e8a200 (diff) | |
| download | bcm5719-llvm-0d8b0cf3b850d1f627e16bbf890ec43df1021ed9.tar.gz bcm5719-llvm-0d8b0cf3b850d1f627e16bbf890ec43df1021ed9.zip | |
Fix ARM isle code that optimize multiply by constants which are power-of-2 +/- 1.
llvm-svn: 76520
Diffstat (limited to 'llvm/test/CodeGen/ARM/mul_const.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/mul_const.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/mul_const.ll b/llvm/test/CodeGen/ARM/mul_const.ll new file mode 100644 index 00000000000..f5ace1852a4 --- /dev/null +++ b/llvm/test/CodeGen/ARM/mul_const.ll @@ -0,0 +1,17 @@ +; RUN: llvm-as < %s | llc -march=arm | FileCheck %s + +define i32 @t1(i32 %v) nounwind readnone { +entry: +; CHECK: t1: +; CHECK: add r0, r0, r0, lsl #3 + %0 = mul i32 %v, 9 + ret i32 %0 +} + +define i32 @t2(i32 %v) nounwind readnone { +entry: +; CHECK: t2: +; CHECK: rsb r0, r0, r0, lsl #3 + %0 = mul i32 %v, 7 + ret i32 %0 +} |
