derek.holloway
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59 lines
2.4 KiB
LLVM
59 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=guard-widening,verify < %s | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
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target triple = "x86_64-unknown-linux-gnu"
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; Make sure GuardWidening moves 'check' instruction before 'wc1' together with its operand - 'zero'.
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define void @foo() {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[ZERO:%.*]] = add i32 0, 0
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; CHECK-NEXT: [[WIDE_CHK:%.*]] = icmp ult i32 [[ZERO]], 0
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; CHECK-NEXT: [[WC1:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[WC2:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[CHECK:%.*]] = icmp ult i32 [[ZERO]], 0
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; CHECK-NEXT: [[C2:%.*]] = and i1 [[CHECK]], [[WC2]]
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; CHECK-NEXT: [[C1:%.*]] = and i1 [[WIDE_CHK]], [[WC1]]
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; CHECK-NEXT: br i1 [[C1]], label [[BB6:%.*]], label [[BB9:%.*]]
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; CHECK: bb6:
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; CHECK-NEXT: br i1 true, label [[BB7:%.*]], label [[BB8:%.*]]
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; CHECK: bb7:
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; CHECK-NEXT: ret void
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; CHECK: bb8:
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; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid(i32 0) [ "deopt"() ]
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; CHECK-NEXT: ret void
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; CHECK: bb9:
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; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid(i32 0) [ "deopt"() ]
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; CHECK-NEXT: ret void
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;
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bb:
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%wc1 = call i1 @llvm.experimental.widenable.condition()
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%wc2 = call i1 @llvm.experimental.widenable.condition()
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%zero = add i32 0, 0
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%check = icmp ult i32 %zero, 0
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%c1 = and i1 %check, %wc1
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%c2 = and i1 %check, %wc2
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br i1 %c1, label %bb6, label %bb9
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bb6: ; preds = %bb
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br i1 %c2, label %bb7, label %bb8
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bb7: ; preds = %bb6
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ret void
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bb8: ; preds = %bb6
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call void (...) @llvm.experimental.deoptimize.isVoid(i32 0) [ "deopt"() ]
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ret void
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bb9: ; preds = %bb
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call void (...) @llvm.experimental.deoptimize.isVoid(i32 0) [ "deopt"() ]
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ret void
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}
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declare void @llvm.experimental.deoptimize.isVoid(...)
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; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite)
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declare i1 @llvm.experimental.widenable.condition() #0
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attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(inaccessiblemem: readwrite) }
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