llvm-for-llvmta/test/Transforms/SCCP/recursion.ll

26 lines
641 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -ipsccp -deadargelim -S | FileCheck %s
; CHECK-NOT: %X
define internal i32 @foo(i32 %X) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: [[Y:%.*]] = call i32 @foo()
; CHECK-NEXT: [[Z:%.*]] = add i32 [[Y]], 1
; CHECK-NEXT: ret i32 [[Z]]
;
%Y = call i32 @foo( i32 %X ) ; <i32> [#uses=1]
%Z = add i32 %Y, 1 ; <i32> [#uses=1]
ret i32 %Z
}
define void @bar() {
; CHECK-LABEL: @bar(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @foo()
; CHECK-NEXT: ret void
;
call i32 @foo( i32 17 ) ; <i32>:1 [#uses=0]
ret void
}