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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 42; RUN: opt < %s -passes=instcombine -S | FileCheck %s3; PR20474 5define i32 @l(i32 %a, i32 %b, i32 %c, i32 %d) {6; CHECK-LABEL: define i32 @l(7; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]], i32 [[D:%.*]]) {8; CHECK-NEXT: entry:9; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[C]], [[B]]10; CHECK-NEXT: [[SUB6:%.*]] = sub i32 [[D]], [[TMP0]]11; CHECK-NEXT: ret i32 [[SUB6]]12;13entry:14 %b.neg = sub i32 0, %b ; <i32> [#uses=1]15 %c.neg = sub i32 0, %c ; <i32> [#uses=1]16 %sub4 = add i32 %c.neg, %b.neg ; <i32> [#uses=1]17 %sub6 = add i32 %sub4, %d ; <i32> [#uses=1]18 ret i32 %sub619}20