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| author | Dan Gohman <gohman@apple.com> | 2011-03-02 01:34:10 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2011-03-02 01:34:10 +0000 |
| commit | 7290868a1ba52b5b82b4c30807301b63b2b14cf1 (patch) | |
| tree | 425053aff3deacbd6e9f55692c8dd3b59e5405c3 /llvm/test/CodeGen/X86/lsr-quadratic-expand.ll | |
| parent | 15fed7af3c050a7cb42316fa8c92f69fa9ffe1a0 (diff) | |
| download | bcm5719-llvm-7290868a1ba52b5b82b4c30807301b63b2b14cf1.tar.gz bcm5719-llvm-7290868a1ba52b5b82b4c30807301b63b2b14cf1.zip | |
Don't re-use existing addrec expansions if they contain casts.
This fixes PR9259.
llvm-svn: 126812
Diffstat (limited to 'llvm/test/CodeGen/X86/lsr-quadratic-expand.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/lsr-quadratic-expand.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/lsr-quadratic-expand.ll b/llvm/test/CodeGen/X86/lsr-quadratic-expand.ll new file mode 100644 index 00000000000..2bbb4709290 --- /dev/null +++ b/llvm/test/CodeGen/X86/lsr-quadratic-expand.ll @@ -0,0 +1,22 @@ +; RUN: llc -march=x86-64 < %s + +define void @dw2102_i2c_transfer() nounwind { +entry: + br label %bb + +bb: ; preds = %bb, %entry + %z = phi i64 [ 0, %entry ], [ %z3, %bb ] + %z1 = phi i16 [ undef, %entry ], [ %z6, %bb ] + %z2 = phi i32 [ 0, %entry ], [ %z8, %bb ] + %z3 = add i64 %z, 1 + %z4 = zext i16 %z1 to i32 + %z5 = add nsw i32 %z4, %z2 + %z6 = trunc i32 %z5 to i16 + call fastcc void @dw210x_op_rw(i16 zeroext %z6) + %z7 = getelementptr i8* null, i64 %z + store i8 undef, i8* %z7, align 1 + %z8 = add nsw i32 %z2, 1 + br label %bb +} + +declare fastcc void @dw210x_op_rw(i16 zeroext) nounwind |
