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| author | Dale Johannesen <dalej@apple.com> | 2010-12-21 21:55:50 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2010-12-21 21:55:50 +0000 |
| commit | c72b18cdc8f155dbb99d554056f3bb6b38f5f72c (patch) | |
| tree | 3b5ea1ea065dc0c9f4ceb067754b3c59e59bd998 /test/CodeGen/X86/x86-64-extend-shift.ll | |
| parent | 7d6fe13efc9bcb69d3479e32f8eace933c5bd2d5 (diff) | |
| download | external_llvm-c72b18cdc8f155dbb99d554056f3bb6b38f5f72c.zip external_llvm-c72b18cdc8f155dbb99d554056f3bb6b38f5f72c.tar.gz external_llvm-c72b18cdc8f155dbb99d554056f3bb6b38f5f72c.tar.bz2 | |
Reapply 122353-122355 with fixes. 122354 was wrong;
the shift type was needed one place, the shift count
type another. The transform in 123555 had the same
problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122366 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/x86-64-extend-shift.ll')
| -rw-r--r-- | test/CodeGen/X86/x86-64-extend-shift.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/X86/x86-64-extend-shift.ll b/test/CodeGen/X86/x86-64-extend-shift.ll new file mode 100644 index 0000000..6852785 --- /dev/null +++ b/test/CodeGen/X86/x86-64-extend-shift.ll @@ -0,0 +1,10 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s +; Formerly there were two shifts. + +define i64 @baz(i32 %A) nounwind { +; CHECK: shlq $49, %rax + %tmp1 = shl i32 %A, 17 + %tmp2 = zext i32 %tmp1 to i64 + %tmp3 = shl i64 %tmp2, 32 + ret i64 %tmp3 +} |