e770249d95
This test is meant to demonstrate an upcoming change that replaces basic block labels by FileCheck patterns.
72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -S | FileCheck %s
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define i32 @phi_after_label(i1 %cc) {
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; CHECK-LABEL: define i32 @phi_after_label(
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; CHECK-SAME: i1 [[CC:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[CC]], label [[THEN:%.*]], label [[END:%.*]]
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; CHECK: then:
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; CHECK-NEXT: br label [[END]]
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; CHECK: end:
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; CHECK-NEXT: [[R:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ 1, [[THEN]] ]
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; CHECK-NEXT: ret i32 [[R]]
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;
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entry:
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br i1 %cc, label %then, label %end
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then:
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br label %end
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end:
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%r = phi i32 [ 0, %entry ], [ 1, %then ]
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ret i32 %r
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}
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define void @phi_before_label(i32 %bound) {
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; CHECK-LABEL: define void @phi_before_label(
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; CHECK-SAME: i32 [[BOUND:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[CTR:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[CTR_NEXT:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[CTR_NEXT]] = add i32 [[CTR]], 1
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; CHECK-NEXT: [[CC:%.*]] = icmp ult i32 [[CTR_NEXT]], [[BOUND]]
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; CHECK-NEXT: br i1 [[CC]], label [[LOOP]], label [[END:%.*]]
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; CHECK: end:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %loop
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loop:
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%ctr = phi i32 [ 0, %entry ], [ %ctr.next, %loop ]
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%ctr.next = add i32 %ctr, 1
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%cc = icmp ult i32 %ctr.next, %bound
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br i1 %cc, label %loop, label %end
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end:
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ret void
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}
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define i32 @phi_after_label_unnamed(i1 %cc) {
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; CHECK-LABEL: define i32 @phi_after_label_unnamed(
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; CHECK-SAME: i1 [[CC:%.*]]) {
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; CHECK-NEXT: br i1 [[CC]], label [[TMP1:%.*]], label [[TMP2:%.*]]
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; CHECK: 1:
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; CHECK-NEXT: br label [[TMP2]]
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; CHECK: 2:
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; CHECK-NEXT: [[R:%.*]] = phi i32 [ 0, [[TMP0:%.*]] ], [ 1, [[TMP1]] ]
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; CHECK-NEXT: ret i32 [[R]]
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;
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0:
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br i1 %cc, label %1, label %2
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1:
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br label %2
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2:
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%r = phi i32 [ 0, %0 ], [ 1, %1 ]
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ret i32 %r
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}
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