llvm-project/llvm/test/Transforms/IROutliner/illegal-phi-nodes.ll

50 lines
1.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s
; Show that we do not extract phi nodes as it would require extra label and
; control flow checking.
define void @function1(i32* %a, i32* %b) {
; CHECK-LABEL: @function1(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FIRST:%.*]]
; CHECK: first:
; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ 3, [[NEXT:%.*]] ]
; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A:%.*]], i32* [[B:%.*]])
; CHECK-NEXT: ret void
; CHECK: next:
; CHECK-NEXT: br label [[FIRST]]
;
entry:
br label %first
first:
%0 = phi i32 [ 0, %entry ], [ 3, %next ]
store i32 2, i32* %a, align 4
store i32 3, i32* %b, align 4
ret void
next:
br label %first
}
define void @function2(i32* %a, i32* %b) {
; CHECK-LABEL: @function2(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FIRST:%.*]]
; CHECK: first:
; CHECK-NEXT: [[TMP0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ 3, [[NEXT:%.*]] ]
; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A:%.*]], i32* [[B:%.*]])
; CHECK-NEXT: ret void
; CHECK: next:
; CHECK-NEXT: br label [[FIRST]]
;
entry:
br label %first
first:
%0 = phi i32 [ 0, %entry ], [ 3, %next ]
store i32 2, i32* %a, align 4
store i32 3, i32* %b, align 4
ret void
next:
br label %first
}