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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=jump-threading -S < %s | FileCheck %s
declare i32 @f1()
declare i32 @f2()
declare void @f3()
define i32 @test1(i1 %cond) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
; CHECK: T2:
; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
; CHECK-NEXT: call void @f3()
; CHECK-NEXT: ret i32 [[V1]]
; CHECK: F2:
; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
; CHECK-NEXT: ret i32 [[V2]]
;
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
%v2 = call i32 @f2()
br label %Merge
Merge:
%A = phi i1 [true, %T1], [false, %F1]
%B = phi i32 [%v1, %T1], [%v2, %F1]
%A.fr = freeze i1 %A
br i1 %A.fr, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
define i32 @test1_cast(i1 %cond) {
; CHECK-LABEL: @test1_cast(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
; CHECK: T2:
; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
; CHECK-NEXT: call void @f3()
; CHECK-NEXT: ret i32 [[V1]]
; CHECK: F2:
; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
; CHECK-NEXT: [[A:%.*]] = trunc i32 0 to i1
; CHECK-NEXT: ret i32 [[V2]]
;
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
%v2 = call i32 @f2()
br label %Merge
Merge:
%A0 = phi i32 [1, %T1], [0, %F1]
%B = phi i32 [%v1, %T1], [%v2, %F1]
%A = trunc i32 %A0 to i1
%A.fr = freeze i1 %A
br i1 %A.fr, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
define i32 @test1_cast2(i1 %cond) {
; CHECK-LABEL: @test1_cast2(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
; CHECK: T2:
; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
; CHECK-NEXT: call void @f3()
; CHECK-NEXT: ret i32 [[V1]]
; CHECK: F2:
; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
; CHECK-NEXT: [[A0_FR:%.*]] = freeze i32 0
; CHECK-NEXT: ret i32 [[V2]]
;
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
%v2 = call i32 @f2()
br label %Merge
Merge:
%A0 = phi i32 [1, %T1], [0, %F1]
%B = phi i32 [%v1, %T1], [%v2, %F1]
%A0.fr = freeze i32 %A0
%A.fr = trunc i32 %A0.fr to i1
br i1 %A.fr, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
define i32 @test1_undef(i1 %cond) {
; CHECK-LABEL: @test1_undef(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[T2:%.*]], label [[F2:%.*]]
; CHECK: T2:
; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
; CHECK-NEXT: call void @f3()
; CHECK-NEXT: ret i32 [[V1]]
; CHECK: F2:
; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
; CHECK-NEXT: ret i32 [[V2]]
;
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
%v2 = call i32 @f2()
br label %Merge
Merge:
%A = phi i1 [true, %T1], [undef, %F1]
%B = phi i32 [%v1, %T1], [%v2, %F1]
%A.fr = freeze i1 %A
br i1 %A.fr, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
define i32 @test2(i1 %cond, i1 %cond2) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: br i1 [[COND:%.*]], label [[MERGE_THREAD:%.*]], label [[MERGE:%.*]]
; CHECK: Merge.thread:
; CHECK-NEXT: [[V1:%.*]] = call i32 @f1()
; CHECK-NEXT: br label [[T2:%.*]]
; CHECK: Merge:
; CHECK-NEXT: [[V2:%.*]] = call i32 @f2()
; CHECK-NEXT: [[A_FR:%.*]] = freeze i1 [[COND2:%.*]]
; CHECK-NEXT: br i1 [[A_FR]], label [[T2]], label [[F2:%.*]]
; CHECK: T2:
; CHECK-NEXT: [[B4:%.*]] = phi i32 [ [[V1]], [[MERGE_THREAD]] ], [ [[V2]], [[MERGE]] ]
; CHECK-NEXT: call void @f3()
; CHECK-NEXT: ret i32 [[B4]]
; CHECK: F2:
; CHECK-NEXT: ret i32 [[V2]]
;
br i1 %cond, label %T1, label %F1
T1:
%v1 = call i32 @f1()
br label %Merge
F1:
%v2 = call i32 @f2()
br label %Merge
Merge:
%A = phi i1 [true, %T1], [%cond2, %F1]
%B = phi i32 [%v1, %T1], [%v2, %F1]
%A.fr = freeze i1 %A
br i1 %A.fr, label %T2, label %F2
T2:
call void @f3()
ret i32 %B
F2:
ret i32 %B
}
define i32 @freeze_known_predicate(i1 %cond) {
; CHECK-LABEL: @freeze_known_predicate(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[ELSE2:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[ELSE2]]
; CHECK: else2:
; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ 1, [[IF]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-NEXT: ret i32 1
;
entry:
br i1 %cond, label %if, label %join
if:
br label %join
join:
%phi = phi i32 [ 1, %if ], [ 2, %entry ]
%cmp = icmp eq i32 %phi, 0
%cmp.fr = freeze i1 %cmp
br i1 %cmp.fr, label %if2, label %else2
if2:
ret i32 0
else2:
ret i32 1
}
define i32 @freeze_known_predicate_barrier(i1 %cond) {
; CHECK-LABEL: @freeze_known_predicate_barrier(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[ELSE2:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[ELSE2]]
; CHECK: else2:
; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ 1, [[IF]] ], [ 2, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[PHI]], 0
; CHECK-NEXT: [[TMP0:%.*]] = call i32 @f1()
; CHECK-NEXT: ret i32 1
;
entry:
br i1 %cond, label %if, label %join
if:
br label %join
join:
%phi = phi i32 [ 1, %if ], [ 2, %entry ]
%cmp = icmp eq i32 %phi, 0
%cmp.fr = freeze i1 %cmp
call i32 @f1()
br i1 %cmp.fr, label %if2, label %else2
if2:
ret i32 0
else2:
ret i32 1
}
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