forked from OSchip/llvm-project
73 lines
1.6 KiB
LLVM
73 lines
1.6 KiB
LLVM
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; RUN: llc -march=hexagon < %s | FileCheck %s
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;
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; Bug 6714. Use sign-extend to promote the arguments for compare
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; equal/not-equal for 8- and 16-bit types with negative constants.
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; CHECK: cmp.eq{{.*}}#-16
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define i32 @foo1(i16 signext %q) nounwind readnone {
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entry:
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%not.cmp = icmp ne i16 %q, -16
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%res.0 = zext i1 %not.cmp to i32
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ret i32 %res.0
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}
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; CHECK: cmp.eq{{.*}}#-14
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define i32 @foo2(i16 signext %q) nounwind readnone {
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entry:
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%cmp = icmp eq i16 %q, -14
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%res.0 = select i1 %cmp, i32 2, i32 0
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ret i32 %res.0
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}
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; CHECK: cmp.eq{{.*}}#-8
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define i32 @foo3(i8 signext %r) nounwind readnone {
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entry:
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%cmp = icmp eq i8 %r, -8
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%res.0 = select i1 %cmp, i32 0, i32 3
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ret i32 %res.0
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}
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; CHECK: cmp.eq{{.*}}#-6
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define i32 @foo4(i8 signext %r) nounwind readnone {
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entry:
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%cmp = icmp eq i8 %r, -6
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%res.0 = select i1 %cmp, i32 4, i32 0
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ret i32 %res.0
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}
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; CHECK: cmp.eq{{.*}}#-20
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define i32 @foo5(i32 %s) nounwind readnone {
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entry:
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%cmp = icmp eq i32 %s, -20
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%res.0 = select i1 %cmp, i32 0, i32 5
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ret i32 %res.0
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}
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; CHECK: cmp.eq{{.*}}#-18
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define i32 @foo6(i32 %s) nounwind readnone {
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entry:
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%cmp = icmp eq i32 %s, -18
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%res.0 = select i1 %cmp, i32 6, i32 0
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ret i32 %res.0
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}
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; CHECK: cmp.eq{{.*}}#10
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define i32 @foo7(i16 signext %q) nounwind readnone {
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entry:
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%cmp = icmp eq i16 %q, 10
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%res.0 = select i1 %cmp, i32 7, i32 0
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ret i32 %res.0
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}
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@g = external global i16
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; CHECK: cmp.eq{{.*}}#-12
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define i32 @foo8() nounwind readonly {
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entry:
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%0 = load i16, i16* @g, align 2
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%cmp = icmp eq i16 %0, -12
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%res.0 = select i1 %cmp, i32 0, i32 8
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ret i32 %res.0
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}
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