forked from OSchip/llvm-project
52 lines
1.8 KiB
LLVM
52 lines
1.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -sroa -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n8:16:32:64"
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@a = external global i16, align 1
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define void @f2() {
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; CHECK-LABEL: @f2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 undef, label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br label [[CLEANUP:%.*]]
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; CHECK: cleanup:
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; CHECK-NEXT: [[G_0_SROA_SPECULATE_LOAD_CLEANUP:%.*]] = load i16, i16* @a, align 1
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; CHECK-NEXT: switch i32 2, label [[CLEANUP7:%.*]] [
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; CHECK-NEXT: i32 0, label [[LBL1:%.*]]
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; CHECK-NEXT: i32 2, label [[LBL1]]
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; CHECK-NEXT: ]
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; CHECK: if.else:
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; CHECK-NEXT: br label [[LBL1]]
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; CHECK: lbl1:
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; CHECK-NEXT: [[G_0_SROA_SPECULATED:%.*]] = phi i16 [ [[G_0_SROA_SPECULATE_LOAD_CLEANUP]], [[CLEANUP]] ], [ [[G_0_SROA_SPECULATE_LOAD_CLEANUP]], [[CLEANUP]] ], [ undef, [[IF_ELSE]] ]
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; CHECK-NEXT: unreachable
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; CHECK: cleanup7:
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; CHECK-NEXT: ret void
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;
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entry:
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%e = alloca i16, align 1
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br i1 undef, label %if.then, label %if.else
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if.then: ; preds = %entry
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br label %cleanup
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cleanup: ; preds = %if.then
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switch i32 2, label %cleanup7 [
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i32 0, label %lbl1
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i32 2, label %lbl1
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]
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if.else: ; preds = %entry
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br label %lbl1
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lbl1: ; preds = %if.else, %cleanup, %cleanup
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%g.0 = phi i16* [ @a, %cleanup ], [ @a, %cleanup ], [ %e, %if.else ]
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%0 = load i16, i16* %g.0, align 1
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unreachable
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cleanup7: ; preds = %cleanup
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ret void
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}
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