46 lines
1.6 KiB
LLVM
46 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -instsimplify < %s | FileCheck %s
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declare double @llvm.log2.f64(double)
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declare double @llvm.pow.f64(double, double)
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define double @log2_pow2(double %x) {
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; CHECK-LABEL: @log2_pow2(
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; CHECK-NEXT: [[TMP:%.*]] = call double @llvm.pow.f64(double 2.000000e+00, double [[X:%.*]])
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; CHECK-NEXT: [[TMP1:%.*]] = call double @llvm.log2.f64(double [[TMP]])
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; CHECK-NEXT: ret double [[TMP1]]
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;
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%tmp = call double @llvm.pow.f64(double 2.000000e+00, double %x)
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%tmp1 = call double @llvm.log2.f64(double %tmp)
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ret double %tmp1
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}
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define double @log2_strict_pow2_reassoc(double %x) {
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; CHECK-LABEL: @log2_strict_pow2_reassoc(
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; CHECK-NEXT: [[TMP:%.*]] = call reassoc double @llvm.pow.f64(double 2.000000e+00, double [[X:%.*]])
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; CHECK-NEXT: [[TMP1:%.*]] = call double @llvm.log2.f64(double [[TMP]])
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; CHECK-NEXT: ret double [[TMP1]]
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;
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%tmp = call reassoc double @llvm.pow.f64(double 2.000000e+00, double %x)
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%tmp1 = call double @llvm.log2.f64(double %tmp)
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ret double %tmp1
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}
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define double @log2_reassoc_pow2_strict(double %x) {
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; CHECK-LABEL: @log2_reassoc_pow2_strict(
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; CHECK-NEXT: ret double [[X:%.*]]
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;
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%tmp = call double @llvm.pow.f64(double 2.000000e+00, double %x)
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%tmp1 = call reassoc double @llvm.log2.f64(double %tmp)
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ret double %tmp1
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}
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define double @log2_pow2_reassoc(double %x) {
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; CHECK-LABEL: @log2_pow2_reassoc(
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; CHECK-NEXT: ret double [[X:%.*]]
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;
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%tmp = call reassoc double @llvm.pow.f64(double 2.000000e+00, double %x)
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%tmp1 = call reassoc double @llvm.log2.f64(double %tmp)
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ret double %tmp1
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}
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