[llvm] [InstCombine] Optimize `sinh` and `cosh` divisions (PR #81433)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,114 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -passes=instcombine < %s | FileCheck %s
+
+define double @fdiv_cosh_sinh(double %a) {
+; CHECK-LABEL: @fdiv_cosh_sinh(
+; CHECK-NEXT:    [[TMP1:%.*]] = call double @cosh(double [[A:%.*]])
+; CHECK-NEXT:    [[TMP2:%.*]] = call double @sinh(double [[A]])
+; CHECK-NEXT:    [[DIV:%.*]] = fdiv double [[TMP1]], [[TMP2]]
+; CHECK-NEXT:    ret double [[DIV]]
+;
+  %1 = call double @cosh(double %a)
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arsenm wrote:

Use named values 

https://github.com/llvm/llvm-project/pull/81433