llvm-for-llvmta/test/Transforms/NewGVN/2007-07-26-PhiErasure.ll

44 lines
1.7 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -newgvn -S | FileCheck %s
; RUN: opt < %s -newgvn --enable-knowledge-retention -S | FileCheck %s
%struct..0anon = type { i32 }
%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
%struct.__sFILEX = type opaque
%struct.__sbuf = type { i8*, i32 }
%struct.rtx_def = type { i16, i8, i8, [1 x %struct..0anon] }
@n_spills = external global i32 ; <i32*> [#uses=2]
define i32 @reload(%struct.rtx_def* %first, i32 %global, %struct.FILE* %dumpfile) {
; CHECK-LABEL: @reload(
; CHECK-NEXT: cond_next2835.1:
; CHECK-NEXT: br label [[BB2928:%.*]]
; CHECK: bb2928:
; CHECK-NEXT: br i1 false, label [[COND_NEXT2943:%.*]], label [[COND_TRUE2935:%.*]]
; CHECK: cond_true2935:
; CHECK-NEXT: br label [[COND_NEXT2943]]
; CHECK: cond_next2943:
; CHECK-NEXT: br i1 false, label [[BB2982_PREHEADER:%.*]], label [[BB2928]]
; CHECK: bb2982.preheader:
; CHECK-NEXT: store i8 undef, i8* null
; CHECK-NEXT: ret i32 undef
;
cond_next2835.1: ; preds = %cond_next2861
%tmp2922 = load i32, i32* @n_spills, align 4 ; <i32> [#uses=0]
br label %bb2928
bb2928: ; preds = %cond_next2835.1, %cond_next2943
br i1 false, label %cond_next2943, label %cond_true2935
cond_true2935: ; preds = %bb2928
br label %cond_next2943
cond_next2943: ; preds = %cond_true2935, %bb2928
br i1 false, label %bb2982.preheader, label %bb2928
bb2982.preheader: ; preds = %cond_next2943
%tmp298316 = load i32, i32* @n_spills, align 4 ; <i32> [#uses=0]
ret i32 %tmp298316
}