36 lines
1.2 KiB
LLVM
36 lines
1.2 KiB
LLVM
; RUN: llc < %s -march=arm -mtriple="thumbv7-apple-ios3.0.0" | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
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%struct.eggs = type { %struct.spam, i16 }
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%struct.spam = type { [3 x i32] }
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%struct.barney = type { [2 x i32], [2 x i32] }
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; Make sure that the sext op does not get lost due to computeKnownBits.
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; CHECK: quux
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; CHECK: lsl
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; CHECK: asr
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; CHECK: bl
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; CHECK: pop
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define void @quux(%struct.eggs* %arg) {
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bb:
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%tmp1 = getelementptr inbounds %struct.eggs, %struct.eggs* %arg, i32 0, i32 1
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%0 = load i16, i16* %tmp1, align 2
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%tobool = icmp eq i16 %0, 0
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br i1 %tobool, label %bb16, label %bb3
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bb3: ; preds = %bb
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%tmp4 = bitcast i16* %tmp1 to i8*
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%tmp5 = ptrtoint i16* %tmp1 to i32
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%tmp6 = shl i32 %tmp5, 20
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%tmp7 = ashr exact i32 %tmp6, 20
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%tmp14 = getelementptr inbounds %struct.barney, %struct.barney* undef, i32 %tmp7
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%tmp15 = tail call i32 @widget(%struct.barney* %tmp14, i8* %tmp4, i32 %tmp7)
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br label %bb16
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bb16: ; preds = %bb3, %bb
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ret void
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}
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declare i32 @widget(%struct.barney*, i8*, i32)
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