82 lines
2.0 KiB
LLVM
82 lines
2.0 KiB
LLVM
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; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
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declare void @bar(i32)
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define void @test_float(float %a, float %b) {
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; CHECK-LABEL: test_float:
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%tst1 = fcmp oeq float %a, %b
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br i1 %tst1, label %end, label %t2
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; CHECK: fcmp {{s[0-9]+}}, {{s[0-9]+}}
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; CHECK: b.eq .L
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t2:
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%tst2 = fcmp une float %b, 0.0
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br i1 %tst2, label %t3, label %end
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; CHECK: fcmp {{s[0-9]+}}, #0.0
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; CHECK: b.eq .L
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t3:
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; This test can't be implemented with just one A64 conditional
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; branch. LLVM converts "ordered and not equal" to "unordered or
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; equal" before instruction selection, which is what we currently
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; test. Obviously, other sequences are valid.
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%tst3 = fcmp one float %a, %b
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br i1 %tst3, label %t4, label %end
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; CHECK: fcmp {{s[0-9]+}}, {{s[0-9]+}}
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; CHECK-NEXT: b.eq .[[T4:LBB[0-9]+_[0-9]+]]
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; CHECK-NEXT: b.vs .[[T4]]
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t4:
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%tst4 = fcmp uge float %a, -0.0
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br i1 %tst4, label %t5, label %end
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; CHECK-NOT: fcmp {{s[0-9]+}}, #0.0
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; CHECK: b.mi .LBB
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t5:
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call void @bar(i32 0)
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ret void
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end:
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ret void
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}
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define void @test_double(double %a, double %b) {
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; CHECK-LABEL: test_double:
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%tst1 = fcmp oeq double %a, %b
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br i1 %tst1, label %end, label %t2
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; CHECK: fcmp {{d[0-9]+}}, {{d[0-9]+}}
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; CHECK: b.eq .L
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t2:
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%tst2 = fcmp une double %b, 0.0
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br i1 %tst2, label %t3, label %end
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; CHECK: fcmp {{d[0-9]+}}, #0.0
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; CHECK: b.eq .L
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t3:
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; This test can't be implemented with just one A64 conditional
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; branch. LLVM converts "ordered and not equal" to "unordered or
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; equal" before instruction selection, which is what we currently
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; test. Obviously, other sequences are valid.
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%tst3 = fcmp one double %a, %b
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br i1 %tst3, label %t4, label %end
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; CHECK: fcmp {{d[0-9]+}}, {{d[0-9]+}}
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; CHECK-NEXT: b.eq .[[T4:LBB[0-9]+_[0-9]+]]
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; CHECK-NEXT: b.vs .[[T4]]
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t4:
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%tst4 = fcmp uge double %a, -0.0
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br i1 %tst4, label %t5, label %end
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; CHECK-NOT: fcmp {{d[0-9]+}}, #0.0
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; CHECK: b.mi .LBB
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t5:
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call void @bar(i32 0)
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ret void
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end:
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ret void
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}
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