pr35807.ll
1.77 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -correlated-propagation -S %s | FileCheck %s
target triple = "x86_64-apple-darwin17.4.0"
define void @patatino() {
; CHECK-LABEL: @patatino(
; CHECK-NEXT: br i1 undef, label [[BB3:%.*]], label [[BB4:%.*]]
; CHECK: bb3:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb4:
; CHECK-NEXT: br i1 undef, label [[BB40:%.*]], label [[BB22:%.*]]
; CHECK: bb7:
; CHECK-NEXT: br label [[BB14:%.*]]
; CHECK: bb12:
; CHECK-NEXT: br label [[BB14]]
; CHECK: bb14:
; CHECK-NEXT: [[TMP19:%.*]] = icmp sgt i32 undef, undef
; CHECK-NEXT: [[TMP20:%.*]] = select i1 [[TMP19]], i64 [[TMP20]], i64 0
; CHECK-NEXT: br i1 undef, label [[BB40]], label [[BB7:%.*]]
; CHECK: bb22:
; CHECK-NEXT: br label [[BB24:%.*]]
; CHECK: bb24:
; CHECK-NEXT: br label [[BB32:%.*]]
; CHECK: bb32:
; CHECK-NEXT: br i1 undef, label [[BB40]], label [[BB24]]
; CHECK: bb40:
; CHECK-NEXT: [[TMP41:%.*]] = phi i64 [ 4, [[BB4]] ], [ [[TMP20]], [[BB14]] ], [ undef, [[BB32]] ]
; CHECK-NEXT: ret void
;
br i1 undef, label %bb3, label %bb4
bb3:
br label %bb3
bb4:
br i1 undef, label %bb40, label %bb22
bb7:
br label %bb14
bb12:
br label %bb14
; This block is unreachable. Due to the non-standard definition of
; dominance in LLVM where uses in unreachable blocks are dominated
; by anything, it contains an instruction of the form
; %def = OP %def, %something
bb14:
%tmp19 = icmp sgt i32 undef, undef
%tmp20 = select i1 %tmp19, i64 %tmp20, i64 0
br i1 undef, label %bb40, label %bb7
bb22:
br label %bb24
bb24:
br label %bb32
bb32:
br i1 undef, label %bb40, label %bb24
bb40:
%tmp41 = phi i64 [ 4, %bb4 ], [ %tmp20, %bb14 ], [ undef, %bb32 ]
ret void
}