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TheRock/compiler/amd-llvm/llvm/test/Transforms/InstCombine/2007-03-26-BadShiftMask.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

36 lines
1.2 KiB
LLVM

; PR1271
; RUN: opt < %s -passes=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(ptr %tmp141, ptr %tmp145,
i32 %b8, i32 %iftmp.430.0, ptr %tmp134.out, ptr %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, ptr %tmp141
%tmp143 = ashr i32 %tmp137, 2 ; <i32> [#uses=1]
store i32 %tmp143, ptr %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, ptr %tmp134.out
store i32 %tmp137, ptr %tmp137.out
ret i1 true
cond_false252.exitStub: ; preds = %newFuncRoot
store i32 %tmp134, ptr %tmp134.out
store i32 %tmp137, ptr %tmp137.out
ret i1 false
}