blob: 1bfd9b7e25cb4c54034a683fa0901a1d5960be21 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
;; This function returns its second argument on all return statements
define internal i32* @incdec(i1 %C, i32* %V) {
; CHECK-LABEL: @incdec(
; CHECK-NEXT: [[X:%.*]] = load i32, i32* [[V:%.*]], align 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[T:%.*]], label [[F:%.*]]
; CHECK: T:
; CHECK-NEXT: [[X1:%.*]] = add i32 [[X]], 1
; CHECK-NEXT: store i32 [[X1]], i32* [[V]], align 4
; CHECK-NEXT: ret i32* [[V]]
; CHECK: F:
; CHECK-NEXT: [[X2:%.*]] = sub i32 [[X]], 1
; CHECK-NEXT: store i32 [[X2]], i32* [[V]], align 4
; CHECK-NEXT: ret i32* [[V]]
;
%X = load i32, i32* %V
br i1 %C, label %T, label %F
T: ; preds = %0
%X1 = add i32 %X, 1
store i32 %X1, i32* %V
ret i32* %V
F: ; preds = %0
%X2 = sub i32 %X, 1
store i32 %X2, i32* %V
ret i32* %V
}
;; This function returns its first argument as a part of a multiple return
;; value
define internal { i32, i32 } @foo(i32 %A, i32 %B) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: [[X:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[Y:%.*]] = insertvalue { i32, i32 } undef, i32 [[A]], 0
; CHECK-NEXT: [[Z:%.*]] = insertvalue { i32, i32 } [[Y]], i32 [[X]], 1
; CHECK-NEXT: ret { i32, i32 } [[Z]]
;
%X = add i32 %A, %B
%Y = insertvalue { i32, i32 } undef, i32 %A, 0
%Z = insertvalue { i32, i32 } %Y, i32 %X, 1
ret { i32, i32 } %Z
}
define void @caller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
; CHECK-LABEL: @caller(
; CHECK-NEXT: [[Q:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[W:%.*]] = call i32* @incdec(i1 [[C:%.*]], i32* [[Q]])
; CHECK-NEXT: [[S1:%.*]] = call { i32, i32 } @foo(i32 1, i32 2)
; CHECK-NEXT: [[X1:%.*]] = extractvalue { i32, i32 } [[S1]], 0
; CHECK-NEXT: [[S2:%.*]] = invoke { i32, i32 } @foo(i32 3, i32 4)
; CHECK-NEXT: to label [[OK:%.*]] unwind label [[LPAD:%.*]]
; CHECK: OK:
; CHECK-NEXT: [[X2:%.*]] = extractvalue { i32, i32 } [[S2]], 0
; CHECK-NEXT: [[Z:%.*]] = add i32 [[X1]], [[X2]]
; CHECK-NEXT: store i32 [[Z]], i32* [[W]], align 4
; CHECK-NEXT: br label [[RET:%.*]]
; CHECK: LPAD:
; CHECK-NEXT: [[EXN:%.*]] = landingpad { i8*, i32 }
; CHECK-NEXT: cleanup
; CHECK-NEXT: br label [[RET]]
; CHECK: RET:
; CHECK-NEXT: ret void
;
%Q = alloca i32
;; Call incdec to see if %W is properly replaced by %Q
%W = call i32* @incdec(i1 %C, i32* %Q ) ; <i32> [#uses=1]
;; Call @foo twice, to prevent the arguments from propagating into the
;; function (so we can check the returned argument is properly
;; propagated per-caller).
%S1 = call { i32, i32 } @foo(i32 1, i32 2)
%X1 = extractvalue { i32, i32 } %S1, 0
%S2 = invoke { i32, i32 } @foo(i32 3, i32 4) to label %OK unwind label %LPAD
OK:
%X2 = extractvalue { i32, i32 } %S2, 0
;; Do some stuff with the returned values which we can grep for
%Z = add i32 %X1, %X2
store i32 %Z, i32* %W
br label %RET
LPAD:
%exn = landingpad {i8*, i32}
cleanup
br label %RET
RET:
ret void
}
declare i32 @__gxx_personality_v0(...)