Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/Transforms/InstCombine/zero-point-zero-add.ll

@@ -1,24 +0,0 @@
-; NOTE: Assertions have been autogenerated by update_test_checks.py
-; RUN: opt < %s -instcombine -S | FileCheck %s
-
-declare double @fabs(double) readonly
-
-define double @test(double %X) {
-; CHECK-LABEL: @test(
-; CHECK-NEXT:    [[Y:%.*]] = fadd double %X, 0.000000e+00
-; CHECK-NEXT:    ret double [[Y]]
-;
-  %Y = fadd double %X, 0.0          ;; Should be a single add x, 0.0
-  %Z = fadd double %Y, 0.0
-  ret double %Z
-}
-
-define double @test1(double %X) {
-; CHECK-LABEL: @test1(
-; CHECK-NEXT:    [[Y:%.*]] = call double @llvm.fabs.f64(double %X)
-; CHECK-NEXT:    ret double [[Y]]
-;
-  %Y = call double @fabs(double %X)
-  %Z = fadd double %Y, 0.0
-  ret double %Z
-}