--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -instsimplify < %s | FileCheck %s
+
+declare double @llvm.log10.f64(double)
+declare double @llvm.pow.f64(double, double)
+
+define double @log10_pow10(double %x) {
+; CHECK-LABEL: @log10_pow10(
+; CHECK-NEXT: [[TMP1:%.*]] = call double @llvm.pow.f64(double 1.000000e+01, double [[X:%.*]])
+; CHECK-NEXT: [[TMP2:%.*]] = call double @llvm.log10.f64(double [[TMP1]])
+; CHECK-NEXT: ret double [[TMP2]]
+;
+ %tmp = call double @llvm.pow.f64(double 1.000000e+01, double %x)
+ %tmp1 = call double @llvm.log10.f64(double %tmp)
+ ret double %tmp1
+}
+
+define double @log10_strict_pow10_reassoc(double %x) {
+; CHECK-LABEL: @log10_strict_pow10_reassoc(
+; CHECK-NEXT: [[TMP1:%.*]] = call reassoc double @llvm.pow.f64(double 1.000000e+01, double [[X:%.*]])
+; CHECK-NEXT: [[TMP2:%.*]] = call double @llvm.log10.f64(double [[TMP1]])
+; CHECK-NEXT: ret double [[TMP2]]
+;
+ %tmp = call reassoc double @llvm.pow.f64(double 1.000000e+01, double %x)
+ %tmp1 = call double @llvm.log10.f64(double %tmp)
+ ret double %tmp1
+}
+
+define double @log10_reassoc_pow10_strict(double %x) {
+; CHECK-LABEL: @log10_reassoc_pow10_strict(
+; CHECK-NEXT: [[TMP1:%.*]] = call double @llvm.pow.f64(double 1.000000e+01, double [[X:%.*]])
+; CHECK-NEXT: [[TMP2:%.*]] = call reassoc double @llvm.log10.f64(double [[TMP1]])
+; CHECK-NEXT: ret double [[TMP2]]
+;
+ %tmp = call double @llvm.pow.f64(double 1.000000e+01, double %x)
+ %tmp1 = call reassoc double @llvm.log10.f64(double %tmp)
+ ret double %tmp1
+}
+
+define double @log10_pow10_reassoc(double %x) {
+; CHECK-LABEL: @log10_pow10_reassoc(
+; CHECK-NEXT: [[TMP1:%.*]] = call reassoc double @llvm.pow.f64(double 1.000000e+01, double [[X:%.*]])
+; CHECK-NEXT: [[TMP2:%.*]] = call reassoc double @llvm.log10.f64(double [[TMP1]])
+; CHECK-NEXT: ret double [[TMP2]]
+;
+ %tmp = call reassoc double @llvm.pow.f64(double 1.000000e+01, double %x)
+ %tmp1 = call reassoc double @llvm.log10.f64(double %tmp)
+ ret double %tmp1
+}
--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -instsimplify < %s | FileCheck %s
+
+declare double @llvm.log2.f64(double)
+declare double @llvm.pow.f64(double, double)
+
+define double @log2_pow2(double %x) {
+; CHECK-LABEL: @log2_pow2(
+; CHECK-NEXT: [[TMP:%.*]] = call double @llvm.pow.f64(double 2.000000e+00, double [[X:%.*]])
+; CHECK-NEXT: [[TMP1:%.*]] = call double @llvm.log2.f64(double [[TMP]])
+; CHECK-NEXT: ret double [[TMP1]]
+;
+ %tmp = call double @llvm.pow.f64(double 2.000000e+00, double %x)
+ %tmp1 = call double @llvm.log2.f64(double %tmp)
+ ret double %tmp1
+}
+
+define double @log2_strict_pow2_reassoc(double %x) {
+; CHECK-LABEL: @log2_strict_pow2_reassoc(
+; CHECK-NEXT: [[TMP:%.*]] = call reassoc double @llvm.pow.f64(double 2.000000e+00, double [[X:%.*]])
+; CHECK-NEXT: [[TMP1:%.*]] = call double @llvm.log2.f64(double [[TMP]])
+; CHECK-NEXT: ret double [[TMP1]]
+;
+ %tmp = call reassoc double @llvm.pow.f64(double 2.000000e+00, double %x)
+ %tmp1 = call double @llvm.log2.f64(double %tmp)
+ ret double %tmp1
+}
+
+define double @log2_reassoc_pow2_strict(double %x) {
+; CHECK-LABEL: @log2_reassoc_pow2_strict(
+; CHECK-NEXT: [[TMP:%.*]] = call double @llvm.pow.f64(double 2.000000e+00, double [[X:%.*]])
+; CHECK-NEXT: [[TMP1:%.*]] = call reassoc double @llvm.log2.f64(double [[TMP]])
+; CHECK-NEXT: ret double [[TMP1]]
+;
+ %tmp = call double @llvm.pow.f64(double 2.000000e+00, double %x)
+ %tmp1 = call reassoc double @llvm.log2.f64(double %tmp)
+ ret double %tmp1
+}
+
+define double @log2_pow2_reassoc(double %x) {
+; CHECK-LABEL: @log2_pow2_reassoc(
+; CHECK-NEXT: [[TMP:%.*]] = call reassoc double @llvm.pow.f64(double 2.000000e+00, double [[X:%.*]])
+; CHECK-NEXT: [[TMP1:%.*]] = call reassoc double @llvm.log2.f64(double [[TMP]])
+; CHECK-NEXT: ret double [[TMP1]]
+;
+ %tmp = call reassoc double @llvm.pow.f64(double 2.000000e+00, double %x)
+ %tmp1 = call reassoc double @llvm.log2.f64(double %tmp)
+ ret double %tmp1
+}