9b9454af8a
This will allow us to use the datalayout to disambiguate other constructs in IR, like load alignment. Split off from D78403. Differential Revision: https://reviews.llvm.org/D78413
147 lines
5.8 KiB
LLVM
147 lines
5.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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;; Ensure we don't change after value numbering by accidentally deleting the wrong expression.
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; RUN: opt -newgvn -S %s | FileCheck %s
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define void @fn1() local_unnamed_addr #0 {
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; CHECK-LABEL: @fn1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_COND_PREHEADER:%.*]]
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; CHECK: while.cond:
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; CHECK-NEXT: br label [[FOR_COND_PREHEADER]]
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; CHECK: for.cond.preheader:
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; CHECK-NEXT: [[H_031:%.*]] = phi i32 [ 5, [[ENTRY:%.*]] ], [ [[H_127:%.*]], [[WHILE_COND:%.*]] ]
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[H_128:%.*]] = phi i32 [ [[H_031]], [[FOR_COND_PREHEADER]] ], [ [[H_2:%.*]], [[FOR_INC:%.*]] ]
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; CHECK-NEXT: br label [[IF_THEN:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br i1 false, label [[L_LOOPEXIT:%.*]], label [[IF_END:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: br i1 undef, label [[FOR_INC]], label [[IF_END9:%.*]]
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; CHECK: if.end9:
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; CHECK-NEXT: br label [[FOR_INC]]
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; CHECK: for.inc:
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; CHECK-NEXT: [[H_2]] = phi i32 [ [[H_128]], [[IF_END]] ], [ 0, [[IF_END9]] ]
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; CHECK-NEXT: br i1 undef, label [[WHILE_COND10_LOOPEXIT:%.*]], label [[FOR_BODY]]
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; CHECK: while.cond10.loopexit:
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; CHECK-NEXT: br label [[WHILE_COND10:%.*]]
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; CHECK: while.cond10:
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; CHECK-NEXT: [[H_127]] = phi i32 [ [[H_126:%.*]], [[IF_END18:%.*]] ], [ [[H_125:%.*]], [[L:%.*]] ], [ [[H_2]], [[WHILE_COND10_LOOPEXIT]] ]
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; CHECK-NEXT: br i1 undef, label [[WHILE_COND]], label [[WHILE_BODY12:%.*]]
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; CHECK: while.body12:
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; CHECK-NEXT: br i1 undef, label [[IF_END18]], label [[L]]
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; CHECK: L.loopexit:
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; CHECK-NEXT: store i8 undef, i8* null
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; CHECK-NEXT: br label [[L]]
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; CHECK: L:
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; CHECK-NEXT: [[H_125]] = phi i32 [ [[H_127]], [[WHILE_BODY12]] ], [ undef, [[L_LOOPEXIT]] ]
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; CHECK-NEXT: br i1 undef, label [[WHILE_COND10]], label [[IF_END18]]
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; CHECK: if.end18:
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; CHECK-NEXT: [[H_126]] = phi i32 [ [[H_125]], [[L]] ], [ [[H_127]], [[WHILE_BODY12]] ]
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; CHECK-NEXT: br label [[WHILE_COND10]]
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;
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entry:
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br label %for.cond.preheader
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while.cond: ; preds = %while.cond10
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br label %for.cond.preheader
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for.cond.preheader: ; preds = %while.cond, %entry
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%h.031 = phi i32 [ 5, %entry ], [ %h.127, %while.cond ]
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br label %for.body
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for.body: ; preds = %for.inc, %for.cond.preheader
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%h.128 = phi i32 [ %h.031, %for.cond.preheader ], [ %h.2, %for.inc ]
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br label %if.then
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if.then: ; preds = %for.body
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br i1 false, label %L.loopexit, label %if.end
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if.end: ; preds = %if.then
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br i1 undef, label %for.inc, label %if.end9
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if.end9: ; preds = %if.end
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br label %for.inc
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for.inc: ; preds = %if.end9, %if.end
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%h.2 = phi i32 [ %h.128, %if.end ], [ 0, %if.end9 ]
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br i1 undef, label %while.cond10.loopexit, label %for.body
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while.cond10.loopexit: ; preds = %for.inc
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%h.2.lcssa = phi i32 [ %h.2, %for.inc ]
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br label %while.cond10
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while.cond10: ; preds = %if.end18, %L, %while.cond10.loopexit
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%h.127 = phi i32 [ %h.126, %if.end18 ], [ %h.125, %L ], [ %h.2.lcssa, %while.cond10.loopexit ]
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br i1 undef, label %while.cond, label %while.body12
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while.body12: ; preds = %while.cond10
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br i1 undef, label %if.end18, label %L
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L.loopexit: ; preds = %if.then
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br label %L
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L: ; preds = %L.loopexit, %while.body12
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%h.125 = phi i32 [ %h.127, %while.body12 ], [ undef, %L.loopexit ]
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br i1 undef, label %while.cond10, label %if.end18
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if.end18: ; preds = %L, %while.body12
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%h.126 = phi i32 [ %h.125, %L ], [ %h.127, %while.body12 ]
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br label %while.cond10
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}
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define void @hoge() local_unnamed_addr #0 {
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; CHECK-LABEL: @hoge(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[TMP:%.*]] = phi i64 [ 0, [[BB:%.*]] ], [ [[TMP2:%.*]], [[BB1]] ]
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; CHECK-NEXT: [[TMP2]] = add nuw nsw i64 [[TMP]], 1
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; CHECK-NEXT: br label [[BB1]]
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;
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bb:
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br label %bb1
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bb1: ; preds = %bb1, %bb
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%tmp = phi i64 [ 0, %bb ], [ %tmp2, %bb1 ]
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%tmp2 = add nuw nsw i64 %tmp, 1
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br label %bb1
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}
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attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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define void @a() {
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; CHECK-LABEL: @a(
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; CHECK-NEXT: b:
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; CHECK-NEXT: store i8* null, i8** null
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; CHECK-NEXT: br label [[D:%.*]]
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; CHECK: d:
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; CHECK-NEXT: [[I:%.*]] = phi i8* [ null, [[B:%.*]] ], [ [[E:%.*]], [[F:%.*]] ]
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; CHECK-NEXT: br i1 undef, label [[F]], label [[G:%.*]]
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; CHECK: g:
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; CHECK-NEXT: store i8* [[I]], i8** null
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; CHECK-NEXT: unreachable
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; CHECK: f:
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; CHECK-NEXT: [[E]] = getelementptr i8, i8* [[I]], i64 1
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; CHECK-NEXT: br label [[D]]
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;
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b:
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store i8* null, i8** null
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br label %d
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d: ; preds = %f, %b
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%i = phi i8* [ null, %b ], [ %e, %f ]
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br i1 undef, label %f, label %g
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g: ; preds = %d
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%h = phi i8* [ %i, %d ]
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store i8* %h, i8** null
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unreachable
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f: ; preds = %d
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%e = getelementptr i8, i8* %i, i64 1
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br label %d
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}
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