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| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -simplifycfg -mtriple=x86_64-unknown-unknown < %s -simplifycfg-merge-cond-stores=true -simplifycfg-merge-cond-stores-aggressively=false -phi-node-folding-threshold=2 -S | FileCheck %s
define void @test_costly(i32* %p, i32 %a, i32 %b, i32 %c, i32 %d) {
; CHECK-LABEL: @test_costly(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[X1:%.*]] = icmp eq i32 [[A:%.*]], 0
; CHECK-NEXT: br i1 [[X1]], label [[FALLTHROUGH:%.*]], label [[YES1:%.*]]
; CHECK: yes1:
; CHECK-NEXT: [[VAL0:%.*]] = sdiv i32 [[D:%.*]], [[C:%.*]]
; CHECK-NEXT: store i32 [[VAL0]], i32* [[P:%.*]]
; CHECK-NEXT: br label [[FALLTHROUGH]]
; CHECK: fallthrough:
; CHECK-NEXT: [[X2:%.*]] = icmp eq i32 [[B:%.*]], 0
; CHECK-NEXT: br i1 [[X2]], label [[END:%.*]], label [[YES2:%.*]]
; CHECK: yes2:
; CHECK-NEXT: [[VAL1:%.*]] = sdiv i32 [[C]], [[D]]
; CHECK-NEXT: store i32 [[VAL1]], i32* [[P]]
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: ret void
;
entry:
%x1 = icmp eq i32 %a, 0
br i1 %x1, label %fallthrough, label %yes1
yes1:
%val0 = sdiv i32 %d, %c
store i32 %val0, i32* %p
br label %fallthrough
fallthrough:
%x2 = icmp eq i32 %b, 0
br i1 %x2, label %end, label %yes2
yes2:
%val1 = sdiv i32 %c, %d
store i32 %val1, i32* %p
br label %end
end:
ret void
}
|