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llvm-mirror/test/Transforms/InstCombine/2007-03-26-BadShiftMask.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

36 lines
1.2 KiB
LLVM

; PR1271
; RUN: opt < %s -instcombine -S | \
; RUN: grep "ashr exact i32 %.mp137, 2"
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "i686-pc-linux-gnu"
define i1 @test(i32* %tmp141, i32* %tmp145,
i32 %b8, i32 %iftmp.430.0, i32* %tmp134.out, i32* %tmp137.out)
{
newFuncRoot:
%tmp133 = and i32 %b8, 1 ; <i32> [#uses=1]
%tmp134 = shl i32 %tmp133, 3 ; <i32> [#uses=3]
%tmp136 = ashr i32 %b8, 1 ; <i32> [#uses=1]
%tmp137 = shl i32 %tmp136, 3 ; <i32> [#uses=3]
%tmp139 = ashr i32 %tmp134, 2 ; <i32> [#uses=1]
store i32 %tmp139, i32* %tmp141
%tmp143 = ashr i32 %tmp137, 2 ; <i32> [#uses=1]
store i32 %tmp143, i32* %tmp145
icmp eq i32 %iftmp.430.0, 0 ; <i1>:0 [#uses=1]
zext i1 %0 to i8 ; <i8>:1 [#uses=1]
icmp ne i8 %1, 0 ; <i1>:2 [#uses=1]
br i1 %2, label %cond_true147.exitStub, label %cond_false252.exitStub
cond_true147.exitStub: ; preds = %newFuncRoot
store i32 %tmp134, i32* %tmp134.out
store i32 %tmp137, i32* %tmp137.out
ret i1 true
cond_false252.exitStub: ; preds = %newFuncRoot
store i32 %tmp134, i32* %tmp134.out
store i32 %tmp137, i32* %tmp137.out
ret i1 false
}