107 lines
3.4 KiB
LLVM
107 lines
3.4 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
||
|
|
; RUN: opt < %s -gvn -gvn-max-block-speculations=1 -S | FileCheck -check-prefix=PRE %s
|
||
|
|
; RUN: opt < %s -gvn -gvn-max-block-speculations=0 -S | FileCheck -check-prefix=CHECK %s
|
||
|
|
|
||
|
|
define i32 @loadpre_opportunity(i32** %arg, i1 %arg1, i1 %arg2, i1 %arg3) {
|
||
|
|
; PRE-LABEL: @loadpre_opportunity(
|
||
|
|
; PRE-NEXT: bb:
|
||
|
|
; PRE-NEXT: [[I:%.*]] = load i32*, i32** [[ARG:%.*]], align 8
|
||
|
|
; PRE-NEXT: [[I6:%.*]] = call i32 @use(i32* [[I]])
|
||
|
|
; PRE-NEXT: br label [[BB11:%.*]]
|
||
|
|
; PRE: bb7:
|
||
|
|
; PRE-NEXT: [[I8:%.*]] = phi i32* [ [[I8_PRE:%.*]], [[BB17_BB7_CRIT_EDGE:%.*]] ], [ [[I81:%.*]], [[BB11]] ]
|
||
|
|
; PRE-NEXT: [[I10:%.*]] = call i32 @use(i32* [[I8]])
|
||
|
|
; PRE-NEXT: br label [[BB11]]
|
||
|
|
; PRE: bb11:
|
||
|
|
; PRE-NEXT: [[I81]] = phi i32* [ [[I]], [[BB:%.*]] ], [ [[I8]], [[BB7:%.*]] ]
|
||
|
|
; PRE-NEXT: [[I12:%.*]] = phi i32 [ [[I6]], [[BB]] ], [ [[I10]], [[BB7]] ]
|
||
|
|
; PRE-NEXT: br i1 [[ARG1:%.*]], label [[BB7]], label [[BB13:%.*]]
|
||
|
|
; PRE: bb13:
|
||
|
|
; PRE-NEXT: call void @somecall()
|
||
|
|
; PRE-NEXT: br i1 [[ARG2:%.*]], label [[BB14:%.*]], label [[BB17:%.*]]
|
||
|
|
; PRE: bb14:
|
||
|
|
; PRE-NEXT: br label [[BB15:%.*]]
|
||
|
|
; PRE: bb15:
|
||
|
|
; PRE-NEXT: br i1 [[ARG3:%.*]], label [[BB16:%.*]], label [[BB15]]
|
||
|
|
; PRE: bb16:
|
||
|
|
; PRE-NEXT: br label [[BB17]]
|
||
|
|
; PRE: bb17:
|
||
|
|
; PRE-NEXT: [[I18:%.*]] = call i1 @cond()
|
||
|
|
; PRE-NEXT: br i1 [[I18]], label [[BB17_BB7_CRIT_EDGE]], label [[BB19:%.*]]
|
||
|
|
; PRE: bb17.bb7_crit_edge:
|
||
|
|
; PRE-NEXT: [[I8_PRE]] = load i32*, i32** [[ARG]], align 8
|
||
|
|
; PRE-NEXT: br label [[BB7]]
|
||
|
|
; PRE: bb19:
|
||
|
|
; PRE-NEXT: ret i32 [[I12]]
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @loadpre_opportunity(
|
||
|
|
; CHECK-NEXT: bb:
|
||
|
|
; CHECK-NEXT: [[I:%.*]] = load i32*, i32** [[ARG:%.*]], align 8
|
||
|
|
; CHECK-NEXT: [[I6:%.*]] = call i32 @use(i32* [[I]])
|
||
|
|
; CHECK-NEXT: br label [[BB11:%.*]]
|
||
|
|
; CHECK: bb7:
|
||
|
|
; CHECK-NEXT: [[I8:%.*]] = load i32*, i32** [[ARG]], align 8
|
||
|
|
; CHECK-NEXT: [[I10:%.*]] = call i32 @use(i32* [[I8]])
|
||
|
|
; CHECK-NEXT: br label [[BB11]]
|
||
|
|
; CHECK: bb11:
|
||
|
|
; CHECK-NEXT: [[I12:%.*]] = phi i32 [ [[I6]], [[BB:%.*]] ], [ [[I10]], [[BB7:%.*]] ]
|
||
|
|
; CHECK-NEXT: br i1 [[ARG1:%.*]], label [[BB7]], label [[BB13:%.*]]
|
||
|
|
; CHECK: bb13:
|
||
|
|
; CHECK-NEXT: call void @somecall()
|
||
|
|
; CHECK-NEXT: br i1 [[ARG2:%.*]], label [[BB14:%.*]], label [[BB17:%.*]]
|
||
|
|
; CHECK: bb14:
|
||
|
|
; CHECK-NEXT: br label [[BB15:%.*]]
|
||
|
|
; CHECK: bb15:
|
||
|
|
; CHECK-NEXT: br i1 [[ARG3:%.*]], label [[BB16:%.*]], label [[BB15]]
|
||
|
|
; CHECK: bb16:
|
||
|
|
; CHECK-NEXT: br label [[BB17]]
|
||
|
|
; CHECK: bb17:
|
||
|
|
; CHECK-NEXT: [[I18:%.*]] = call i1 @cond()
|
||
|
|
; CHECK-NEXT: br i1 [[I18]], label [[BB7]], label [[BB19:%.*]]
|
||
|
|
; CHECK: bb19:
|
||
|
|
; CHECK-NEXT: ret i32 [[I12]]
|
||
|
|
;
|
||
|
|
bb:
|
||
|
|
%i = load i32*, i32** %arg, align 8
|
||
|
|
%i4 = getelementptr inbounds i32, i32* %i, i64 0
|
||
|
|
br label %bb5
|
||
|
|
|
||
|
|
bb5:
|
||
|
|
%i6 = call i32 @use(i32* %i4)
|
||
|
|
br label %bb11
|
||
|
|
|
||
|
|
bb7:
|
||
|
|
%i8 = load i32*, i32** %arg, align 8
|
||
|
|
%i9 = getelementptr inbounds i32, i32* %i8, i64 0
|
||
|
|
%i10 = call i32 @use(i32* %i9)
|
||
|
|
br label %bb11
|
||
|
|
|
||
|
|
bb11:
|
||
|
|
%i12 = phi i32 [ %i6, %bb5 ], [ %i10, %bb7 ]
|
||
|
|
br i1 %arg1, label %bb7, label %bb13
|
||
|
|
|
||
|
|
bb13:
|
||
|
|
call void @somecall()
|
||
|
|
br i1 %arg2, label %bb14, label %bb17
|
||
|
|
|
||
|
|
bb14:
|
||
|
|
br label %bb15
|
||
|
|
|
||
|
|
bb15:
|
||
|
|
br i1 %arg3, label %bb16, label %bb15
|
||
|
|
|
||
|
|
bb16:
|
||
|
|
br label %bb17
|
||
|
|
|
||
|
|
bb17:
|
||
|
|
%i18 = call i1 @cond()
|
||
|
|
br i1 %i18, label %bb7, label %bb19
|
||
|
|
|
||
|
|
bb19:
|
||
|
|
ret i32 %i12
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @somecall()
|
||
|
|
declare i32 @use(i32*) readnone
|
||
|
|
declare i1 @cond() readnone
|