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81b56b45f1
This reverts rL363474. -debug-only=isel was added to some tests that don't specify `REQUIRES: asserts`. This causes failures on -DLLVM_ENABLE_ASSERTIONS=off builds. I chose to revert instead of fixing the tests because I'm not sure whether we should add `REQUIRES: asserts` to more tests. llvm-svn: 363482
65 lines
1.9 KiB
LLVM
65 lines
1.9 KiB
LLVM
; RUN: llc < %s -mtriple=arm64-eabi -enable-no-nans-fp-math | FileCheck %s
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define double @test_direct(float %in) {
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; CHECK-LABEL: test_direct:
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%cmp = fcmp nnan olt float %in, 0.000000e+00
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%val = select i1 %cmp, float 0.000000e+00, float %in
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%longer = fpext float %val to double
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ret double %longer
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; CHECK: fmax
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}
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define double @test_cross(float %in) {
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; CHECK-LABEL: test_cross:
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%cmp = fcmp nnan ult float %in, 0.000000e+00
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%val = select i1 %cmp, float %in, float 0.000000e+00
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%longer = fpext float %val to double
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ret double %longer
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; CHECK: fmin
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}
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; Same as previous, but with ordered comparison;
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; can't be converted in safe-math mode.
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define double @test_cross_fail_nan(float %in) {
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; CHECK-LABEL: test_cross_fail_nan:
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%cmp = fcmp nnan olt float %in, 0.000000e+00
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%val = select i1 %cmp, float %in, float 0.000000e+00
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%longer = fpext float %val to double
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ret double %longer
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; CHECK: fmin
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}
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; This isn't a min or a max, but passes the first condition for swapping the
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; results. Make sure they're put back before we resort to the normal fcsel.
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define float @test_cross_fail(float %lhs, float %rhs) {
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; CHECK-LABEL: test_cross_fail:
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%tst = fcmp nnan une float %lhs, %rhs
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%res = select i1 %tst, float %rhs, float %lhs
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ret float %res
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; The register allocator would have to decide to be deliberately obtuse before
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; other register were used.
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; CHECK: fcsel s0, s1, s0, ne
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}
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; Make sure the transformation isn't triggered for integers
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define i64 @test_integer(i64 %in) {
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%cmp = icmp slt i64 %in, 0
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%val = select i1 %cmp, i64 0, i64 %in
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ret i64 %val
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}
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define float @test_f16(half %in) {
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; CHECK-LABEL: test_f16:
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%cmp = fcmp nnan ult half %in, 0.000000e+00
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%val = select i1 %cmp, half %in, half 0.000000e+00
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%longer = fpext half %val to float
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ret float %longer
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; FIXME: It'd be nice for this to create an fmin instruction!
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; CHECK: fcvt
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; CHECK: fcsel
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}
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