derek.holloway
7502bf64a4
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42 lines
1.8 KiB
LLVM
42 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt -S -passes=early-cse < %s | FileCheck %s
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; We can't assume comparisons with 0 are exact class tests with dynamic denormal mode
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define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math(double %a) #0 {
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; CHECK-LABEL: define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math(
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; CHECK-SAME: double [[A:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[A]], 0.000000e+00
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; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP]], double 1.000000e+00, double 0.000000e+00
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; CHECK-NEXT: store double [[COND]], ptr addrspace(5) null, align 8
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; CHECK-NEXT: ret double [[COND]]
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;
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entry:
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%cmp = fcmp oeq double %a, 0.000000e+00
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%cond = select i1 %cmp, double 1.000000e+00, double 0.000000e+00
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store double %cond, ptr addrspace(5) null, align 8
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%load = load double, ptr addrspace(5) null, align 8
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%add.i = fadd double %load, 0.000000e+00
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ret double %add.i
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}
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define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math_negzero(double %a) #0 {
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; CHECK-LABEL: define double @cannot_be_negative_zero_test_dynamic_denormal_fp_math_negzero(
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; CHECK-SAME: double [[A:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[A]], -0.000000e+00
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; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP]], double 1.000000e+00, double 0.000000e+00
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; CHECK-NEXT: store double [[COND]], ptr addrspace(5) null, align 8
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; CHECK-NEXT: ret double [[COND]]
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;
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entry:
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%cmp = fcmp oeq double %a, -0.000000e+00
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%cond = select i1 %cmp, double 1.000000e+00, double 0.000000e+00
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store double %cond, ptr addrspace(5) null, align 8
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%load = load double, ptr addrspace(5) null, align 8
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%add.i = fadd double %load, 0.000000e+00
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ret double %add.i
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}
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attributes #0 = { denormal_fpenv(dynamic) }
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