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| author | Dan Gohman <gohman@apple.com> | 2007-11-26 23:46:11 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2007-11-26 23:46:11 +0000 |
| commit | 77003040b21816725dc1ca3a55111044d36ac21f (patch) | |
| tree | 1d1442c3f403517891e7ab3940371e08660e7639 /test/CodeGen/X86/urem-i8-constant.ll | |
| parent | aa91792d6c51f0671f896c26ff1b541621974081 (diff) | |
| download | external_llvm-77003040b21816725dc1ca3a55111044d36ac21f.zip external_llvm-77003040b21816725dc1ca3a55111044d36ac21f.tar.gz external_llvm-77003040b21816725dc1ca3a55111044d36ac21f.tar.bz2 | |
Don't lower srem/urem X%C to X-X/C*C unless the division is actually
optimized. This avoids creating illegal divisions when the combiner is
running after legalize; this fixes PR1815. Also, it produces better
code in the included testcase by avoiding the subtract and multiply
when the division isn't optimized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44341 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/urem-i8-constant.ll')
| -rw-r--r-- | test/CodeGen/X86/urem-i8-constant.ll | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/test/CodeGen/X86/urem-i8-constant.ll b/test/CodeGen/X86/urem-i8-constant.ll new file mode 100644 index 0000000..8a43333 --- /dev/null +++ b/test/CodeGen/X86/urem-i8-constant.ll @@ -0,0 +1,6 @@ +; RUN: llvm-as < %s | llc -march=x86 | not grep mul + +define i8 @foo(i8 %tmp325) { + %t546 = urem i8 %tmp325, 37 + ret i8 %t546 +} |