forked from OSchip/llvm-project
45 lines
1.5 KiB
LLVM
45 lines
1.5 KiB
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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; Honor the alignment of a halfword on byte boundaries.
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; CHECK-NOT: memh
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target triple = "hexagon-unknown-linux-gnu"
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%s.0 = type <{ i16, i8, i16 }>
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@g0 = common global %s.0 zeroinitializer, align 1
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; Function Attrs: nounwind
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define i32 @f0(i32 %a0) #0 {
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b0:
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%v0 = alloca i32, align 4
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store i32 %a0, i32* %v0, align 4
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store i8 1, i8* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 1), align 1
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%v1 = load i16, i16* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 2), align 1
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%v2 = add i16 %v1, 1
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store i16 %v2, i16* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 2), align 1
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%v3 = load i32, i32* %v0, align 4
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%v4 = icmp ne i32 %v3, 0
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br i1 %v4, label %b1, label %b2
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b1: ; preds = %b0
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%v5 = load i16, i16* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 2), align 1
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%v6 = zext i16 %v5 to i32
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%v7 = or i32 %v6, 6144
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%v8 = trunc i32 %v7 to i16
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store i16 %v8, i16* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 2), align 1
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br label %b3
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b2: ; preds = %b0
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%v9 = load i16, i16* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 2), align 1
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%v10 = zext i16 %v9 to i32
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%v11 = or i32 %v10, 2048
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%v12 = trunc i32 %v11 to i16
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store i16 %v12, i16* getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 2), align 1
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br label %b3
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b3: ; preds = %b2, %b1
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ret i32 0
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}
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attributes #0 = { nounwind }
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