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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=early-cse -earlycse-debug-hash -S < %s | FileCheck %s
; RUN: opt -passes='early-cse<memssa>' -S < %s | FileCheck %s
declare void @use(i1)
declare void @use.ptr(ptr) memory(read)
define void @test1(float %x, float %y) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[CMP1:%.*]] = fcmp oeq float [[Y:%.*]], [[X:%.*]]
; CHECK-NEXT: call void @use(i1 [[CMP1]])
; CHECK-NEXT: call void @use(i1 [[CMP1]])
; CHECK-NEXT: ret void
;
%cmp1 = fcmp nnan oeq float %y, %x
%cmp2 = fcmp oeq float %x, %y
call void @use(i1 %cmp1)
call void @use(i1 %cmp2)
ret void
}
declare void @use.i8(ptr)
define void @test_inbounds_program_ub_if_first_gep_poison(ptr %ptr, i64 %n) {
; CHECK-LABEL: @test_inbounds_program_ub_if_first_gep_poison(
; CHECK-NEXT: [[ADD_PTR_1:%.*]] = getelementptr inbounds i8, ptr [[PTR:%.*]], i64 [[N:%.*]]
; CHECK-NEXT: call void @use.i8(ptr noundef [[ADD_PTR_1]])
; CHECK-NEXT: call void @use.i8(ptr [[ADD_PTR_1]])
; CHECK-NEXT: ret void
;
%add.ptr.1 = getelementptr inbounds i8, ptr %ptr, i64 %n
call void @use.i8(ptr noundef %add.ptr.1)
%add.ptr.2 = getelementptr i8, ptr %ptr, i64 %n
call void @use.i8(ptr %add.ptr.2)
ret void
}
define void @test_inbounds_program_not_ub_if_first_gep_poison(ptr %ptr, i64 %n) {
; CHECK-LABEL: @test_inbounds_program_not_ub_if_first_gep_poison(
; CHECK-NEXT: [[ADD_PTR_1:%.*]] = getelementptr i8, ptr [[PTR:%.*]], i64 [[N:%.*]]
; CHECK-NEXT: call void @use.i8(ptr [[ADD_PTR_1]])
; CHECK-NEXT: call void @use.i8(ptr [[ADD_PTR_1]])
; CHECK-NEXT: ret void
;
%add.ptr.1 = getelementptr inbounds i8, ptr %ptr, i64 %n
call void @use.i8(ptr %add.ptr.1)
%add.ptr.2 = getelementptr i8, ptr %ptr, i64 %n
call void @use.i8(ptr %add.ptr.2)
ret void
}
define void @load_both_nonnull(ptr %p) {
; CHECK-LABEL: @load_both_nonnull(
; CHECK-NEXT: [[V1:%.*]] = load ptr, ptr [[P:%.*]], align 8, !nonnull [[META0:![0-9]+]]
; CHECK-NEXT: call void @use.ptr(ptr [[V1]])
; CHECK-NEXT: call void @use.ptr(ptr [[V1]])
; CHECK-NEXT: ret void
;
%v1 = load ptr, ptr %p, !nonnull !{}
call void @use.ptr(ptr %v1)
%v2 = load ptr, ptr %p, !nonnull !{}
call void @use.ptr(ptr %v2)
ret void
}
define void @load_first_nonnull(ptr %p) {
; CHECK-LABEL: @load_first_nonnull(
; CHECK-NEXT: [[V1:%.*]] = load ptr, ptr [[P:%.*]], align 8
; CHECK-NEXT: call void @use.ptr(ptr [[V1]])
; CHECK-NEXT: call void @use.ptr(ptr [[V1]])
; CHECK-NEXT: ret void
;
%v1 = load ptr, ptr %p, !nonnull !{}
call void @use.ptr(ptr %v1)
%v2 = load ptr, ptr %p
call void @use.ptr(ptr %v2)
ret void
}
define void @load_first_nonnull_noundef(ptr %p) {
; CHECK-LABEL: @load_first_nonnull_noundef(
; CHECK-NEXT: [[V1:%.*]] = load ptr, ptr [[P:%.*]], align 8, !nonnull [[META0]], !noundef [[META0]]
; CHECK-NEXT: call void @use.ptr(ptr [[V1]])
; CHECK-NEXT: call void @use.ptr(ptr [[V1]])
; CHECK-NEXT: ret void
;
%v1 = load ptr, ptr %p, !nonnull !{}, !noundef !{}
call void @use.ptr(ptr %v1)
%v2 = load ptr, ptr %p
call void @use.ptr(ptr %v2)
ret void
}
define ptr @store_to_load_forward(ptr %p, ptr %p2) {
; CHECK-LABEL: @store_to_load_forward(
; CHECK-NEXT: [[P3:%.*]] = load ptr, ptr [[P:%.*]], align 8, !nonnull [[META0]]
; CHECK-NEXT: store ptr [[P3]], ptr [[P2:%.*]], align 8
; CHECK-NEXT: ret ptr [[P3]]
;
%p3 = load ptr, ptr %p, !nonnull !{}
store ptr %p3, ptr %p2
%res = load ptr, ptr %p2
ret ptr %res
}
define i32 @load_undef_noundef(ptr %p) {
; CHECK-LABEL: @load_undef_noundef(
; CHECK-NEXT: store i32 undef, ptr [[P:%.*]], align 4
; CHECK-NEXT: ret i32 undef
;
store i32 undef, ptr %p
%v = load i32, ptr %p, !noundef !{}
ret i32 %v
}
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