; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; REQUIRES: asserts
; RUN: opt < %s -passes=instcombine --debug-counter=assume-queries-counter=0 -S | FileCheck %s --check-prefixes=COUNTER1
; RUN: opt < %s -passes=instcombine --debug-counter=assume-queries-counter=1-2 -S | FileCheck %s --check-prefixes=COUNTER2
; RUN: opt < %s -passes=instcombine --debug-counter=assume-queries-counter=2-6 -S | FileCheck %s --check-prefixes=COUNTER3
declare i1 @get_val()
declare void @llvm.assume(i1)
define dso_local i1 @test1(ptr readonly %0) {
; COUNTER1-LABEL: @test1(
; COUNTER1-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[TMP0:%.*]]) ]
; COUNTER1-NEXT: ret i1 false
;
; COUNTER2-LABEL: @test1(
; COUNTER2-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[TMP0:%.*]]) ]
; COUNTER2-NEXT: [[TMP2:%.*]] = icmp eq ptr [[TMP0]], null
; COUNTER2-NEXT: ret i1 [[TMP2]]
;
; COUNTER3-LABEL: @test1(
; COUNTER3-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[TMP0:%.*]]) ]
; COUNTER3-NEXT: [[TMP2:%.*]] = icmp eq ptr [[TMP0]], null
; COUNTER3-NEXT: ret i1 [[TMP2]]
;
call void @llvm.assume(i1 true) ["nonnull"(ptr %0)]
%2 = icmp eq ptr %0, null
ret i1 %2
}
define dso_local i1 @test2(ptr readonly %0) {
; COUNTER1-LABEL: @test2(
; COUNTER1-NEXT: [[TMP2:%.*]] = icmp eq ptr [[TMP0:%.*]], null
; COUNTER1-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[TMP0]]) ]
; COUNTER1-NEXT: ret i1 [[TMP2]]
;
; COUNTER2-LABEL: @test2(
; COUNTER2-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[TMP0:%.*]]) ]
; COUNTER2-NEXT: ret i1 false
;
; COUNTER3-LABEL: @test2(
; COUNTER3-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[TMP0:%.*]]) ]
; COUNTER3-NEXT: ret i1 false
;
%2 = icmp eq ptr %0, null
call void @llvm.assume(i1 true) ["nonnull"(ptr %0)]
ret i1 %2
}
define dso_local i32 @test4(ptr readonly %0, i1 %cond) {
; COUNTER1-LABEL: @test4(
; COUNTER1-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(ptr [[TMP0:%.*]], i32 4) ]
; COUNTER1-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
; COUNTER1: B:
; COUNTER1-NEXT: br label [[A]]
; COUNTER1: A:
; COUNTER1-NEXT: [[TMP2:%.*]] = icmp eq ptr [[TMP0]], null
; COUNTER1-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
; COUNTER1: 3:
; COUNTER1-NEXT: [[TMP4:%.*]] = load i32, ptr [[TMP0]], align 4
; COUNTER1-NEXT: br label [[TMP5]]
; COUNTER1: 5:
; COUNTER1-NEXT: [[TMP6:%.*]] = phi i32 [ [[TMP4]], [[TMP3]] ], [ 0, [[A]] ]
; COUNTER1-NEXT: ret i32 [[TMP6]]
;
; COUNTER2-LABEL: @test4(
; COUNTER2-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(ptr [[TMP0:%.*]], i32 4) ]
; COUNTER2-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
; COUNTER2: B:
; COUNTER2-NEXT: br label [[A]]
; COUNTER2: A:
; COUNTER2-NEXT: [[TMP2:%.*]] = icmp eq ptr [[TMP0]], null
; COUNTER2-NEXT: br i1 [[TMP2]], label [[TMP5:%.*]], label [[TMP3:%.*]]
; COUNTER2: 3:
; COUNTER2-NEXT: [[TMP4:%.*]] = load i32, ptr [[TMP0]], align 4
; COUNTER2-NEXT: br label [[TMP5]]
; COUNTER2: 5:
; COUNTER2-NEXT: [[TMP6:%.*]] = phi i32 [ [[TMP4]], [[TMP3]] ], [ 0, [[A]] ]
; COUNTER2-NEXT: ret i32 [[TMP6]]
;
; COUNTER3-LABEL: @test4(
; COUNTER3-NEXT: call void @llvm.assume(i1 true) [ "dereferenceable"(ptr [[TMP0:%.*]], i32 4) ]
; COUNTER3-NEXT: br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
; COUNTER3: B:
; COUNTER3-NEXT: br label [[A]]
; COUNTER3: A:
; COUNTER3-NEXT: br i1 false, label [[TMP4:%.*]], label [[TMP2:%.*]]
; COUNTER3: 2:
; COUNTER3-NEXT: [[TMP3:%.*]] = load i32, ptr [[TMP0]], align 4
; COUNTER3-NEXT: br label [[TMP4]]
; COUNTER3: 4:
; COUNTER3-NEXT: [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[TMP2]] ], [ poison, [[A]] ]
; COUNTER3-NEXT: ret i32 [[TMP5]]
;
call void @llvm.assume(i1 true) ["dereferenceable"(ptr %0, i32 4)]
br i1 %cond, label %A, label %B
B:
br label %A
A:
%2 = icmp eq ptr %0, null
br i1 %2, label %5, label %3
3: ; preds = %1
%4 = load i32, ptr %0, align 4
br label %5
5: ; preds = %1, %3
%6 = phi i32 [ %4, %3 ], [ 0, %A ]
ret i32 %6
}
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