; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals ; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -hoist-common-insts=true -S | FileCheck %s define void @hoist_range(i1 %c, ptr %p) { ; CHECK-LABEL: @hoist_range( ; CHECK-NEXT: if: ; CHECK-NEXT: [[T:%.*]] = load i8, ptr [[P:%.*]], align 1, !range [[RNG0:![0-9]+]] ; CHECK-NEXT: ret void ; if: br i1 %c, label %then, label %else then: %t = load i8, ptr %p, !range !0 br label %out else: %e = load i8, ptr %p, !range !1 br label %out out: ret void } define void @hoist_range_switch(i64 %i, ptr %p) { ; CHECK-LABEL: @hoist_range_switch( ; CHECK-NEXT: out: ; CHECK-NEXT: [[T:%.*]] = load i8, ptr [[P:%.*]], align 1, !range [[RNG1:![0-9]+]] ; CHECK-NEXT: ret void ; switch i64 %i, label %bb0 [ i64 1, label %bb1 i64 2, label %bb2 ] bb0: %t = load i8, ptr %p, !range !0 br label %out bb1: %e = load i8, ptr %p, !range !1 br label %out bb2: %f = load i8, ptr %p, !range !3 br label %out out: ret void } define void @hoist_both_noundef(i1 %c, ptr %p) { ; CHECK-LABEL: @hoist_both_noundef( ; CHECK-NEXT: if: ; CHECK-NEXT: [[T:%.*]] = load i8, ptr [[P:%.*]], align 1, !noundef !2 ; CHECK-NEXT: ret void ; if: br i1 %c, label %then, label %else then: %t = load i8, ptr %p, !noundef !2 br label %out else: %e = load i8, ptr %p, !noundef !2 br label %out out: ret void } define void @hoist_both_noundef_switch(i64 %i, ptr %p) { ; CHECK-LABEL: @hoist_both_noundef_switch( ; CHECK-NEXT: out: ; CHECK-NEXT: [[T:%.*]] = load i8, ptr [[P:%.*]], align 1, !noundef !2 ; CHECK-NEXT: ret void ; switch i64 %i, label %bb0 [ i64 1, label %bb1 i64 2, label %bb2 ] bb0: %t = load i8, ptr %p, !noundef !2 br label %out bb1: %e = load i8, ptr %p, !noundef !2 br label %out bb2: %f = load i8, ptr %p, !noundef !2 br label %out out: ret void } define void @hoist_one_noundef(i1 %c, ptr %p) { ; CHECK-LABEL: @hoist_one_noundef( ; CHECK-NEXT: if: ; CHECK-NEXT: [[T:%.*]] = load i8, ptr [[P:%.*]], align 1 ; CHECK-NEXT: ret void ; if: br i1 %c, label %then, label %else then: %t = load i8, ptr %p, !noundef !2 br label %out else: %e = load i8, ptr %p br label %out out: ret void } define void @hoist_one_noundef_switch(i64 %i, ptr %p) { ; CHECK-LABEL: @hoist_one_noundef_switch( ; CHECK-NEXT: out: ; CHECK-NEXT: [[T:%.*]] = load i8, ptr [[P:%.*]], align 1 ; CHECK-NEXT: ret void ; switch i64 %i, label %bb0 [ i64 1, label %bb1 i64 2, label %bb2 ] bb0: %t = load i8, ptr %p, !noundef !2 br label %out bb1: %e = load i8, ptr %p br label %out bb2: %f = load i8, ptr %p, !noundef !2 br label %out out: ret void } define void @hoist_dereferenceable(i1 %c, ptr %p) { ; CHECK-LABEL: @hoist_dereferenceable( ; CHECK-NEXT: if: ; CHECK-NEXT: [[T:%.*]] = load ptr, ptr [[P:%.*]], align 8, !dereferenceable !3 ; CHECK-NEXT: ret void ; if: br i1 %c, label %then, label %else then: %t = load ptr, ptr %p, !dereferenceable !{i64 10} br label %out else: %e = load ptr, ptr %p, !dereferenceable !{i64 20} br label %out out: ret void } define void @hoist_dereferenceable_switch(i64 %i, ptr %p) { ; CHECK-LABEL: @hoist_dereferenceable_switch( ; CHECK-NEXT: out: ; CHECK-NEXT: [[T:%.*]] = load ptr, ptr [[P:%.*]], align 8, !dereferenceable !3 ; CHECK-NEXT: ret void ; switch i64 %i, label %bb0 [ i64 1, label %bb1 i64 2, label %bb2 ] bb0: %t = load ptr, ptr %p, !dereferenceable !{i64 10} br label %out bb1: %e = load ptr, ptr %p, !dereferenceable !{i64 20} br label %out bb2: %f = load ptr, ptr %p, !dereferenceable !{i64 30} br label %out out: ret void } define void @hoist_dereferenceable_or_null(i1 %c, ptr %p) { ; CHECK-LABEL: @hoist_dereferenceable_or_null( ; CHECK-NEXT: if: ; CHECK-NEXT: [[T:%.*]] = load ptr, ptr [[P:%.*]], align 8, !dereferenceable_or_null !3 ; CHECK-NEXT: ret void ; if: br i1 %c, label %then, label %else then: %t = load ptr, ptr %p, !dereferenceable_or_null !{i64 20} br label %out else: %e = load ptr, ptr %p, !dereferenceable_or_null !{i64 10} br label %out out: ret void } define void @hoist_dereferenceable_or_null_switch(i64 %i, ptr %p) { ; CHECK-LABEL: @hoist_dereferenceable_or_null_switch( ; CHECK-NEXT: out: ; CHECK-NEXT: [[T:%.*]] = load ptr, ptr [[P:%.*]], align 8, !dereferenceable_or_null !3 ; CHECK-NEXT: ret void ; switch i64 %i, label %bb0 [ i64 1, label %bb1 i64 2, label %bb2 ] bb0: %t = load ptr, ptr %p, !dereferenceable_or_null !{i64 20} br label %out bb1: %e = load ptr, ptr %p, !dereferenceable_or_null !{i64 10} br label %out bb2: %f = load ptr, ptr %p, !dereferenceable_or_null !{i64 30} br label %out out: ret void } ; !range violation only returns poison, and is thus safe to speculate. define i32 @speculate_range(i1 %c, ptr dereferenceable(8) align 8 %p) { ; CHECK-LABEL: @speculate_range( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[P:%.*]], align 4, !range [[RNG4:![0-9]+]] ; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], i32 [[V]], i32 0 ; CHECK-NEXT: ret i32 [[SPEC_SELECT]] ; entry: br i1 %c, label %if, label %join if: %v = load i32, ptr %p, !range !{i32 0, i32 10} br label %join join: %phi = phi i32 [ %v, %if ], [ 0, %entry ] ret i32 %phi } ; !nonnull is safe to speculate, but !noundef is not, as the latter causes ; immediate undefined behavior. define ptr @speculate_nonnull(i1 %c, ptr dereferenceable(8) align 8 %p) { ; CHECK-LABEL: @speculate_nonnull( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[V:%.*]] = load ptr, ptr [[P:%.*]], align 8, !nonnull !2 ; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], ptr [[V]], ptr null ; CHECK-NEXT: ret ptr [[SPEC_SELECT]] ; entry: br i1 %c, label %if, label %join if: %v = load ptr, ptr %p, !nonnull !{}, !noundef !{} br label %join join: %phi = phi ptr [ %v, %if ], [ null, %entry ] ret ptr %phi } ; !align is safe to speculate, but !dereferenceable is not, as the latter causes ; immediate undefined behavior. define ptr @speculate_align(i1 %c, ptr dereferenceable(8) align 8 %p) { ; CHECK-LABEL: @speculate_align( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[V:%.*]] = load ptr, ptr [[P:%.*]], align 8, !align !5 ; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], ptr [[V]], ptr null ; CHECK-NEXT: ret ptr [[SPEC_SELECT]] ; entry: br i1 %c, label %if, label %join if: %v = load ptr, ptr %p, !align !{i64 4}, !dereferenceable !{i64 4} br label %join join: %phi = phi ptr [ %v, %if ], [ null, %entry ] ret ptr %phi } define void @hoist_fpmath(i1 %c, double %x) { ; CHECK-LABEL: @hoist_fpmath( ; CHECK-NEXT: if: ; CHECK-NEXT: [[T:%.*]] = fadd double [[X:%.*]], 1.000000e+00, !fpmath !6 ; CHECK-NEXT: ret void ; if: br i1 %c, label %then, label %else then: %t = fadd double %x, 1.0, !fpmath !{ float 2.5 } br label %out else: %e = fadd double %x, 1.0, !fpmath !{ float 5.0 } br label %out out: ret void } define void @hoist_fpmath_switch(i64 %i, double %x) { ; CHECK-LABEL: @hoist_fpmath_switch( ; CHECK-NEXT: out: ; CHECK-NEXT: [[T:%.*]] = fadd double [[X:%.*]], 1.000000e+00, !fpmath !6 ; CHECK-NEXT: ret void ; switch i64 %i, label %bb0 [ i64 1, label %bb1 i64 2, label %bb2 ] bb0: %t = fadd double %x, 1.0, !fpmath !{ float 2.5 } br label %out bb1: %e = fadd double %x, 1.0, !fpmath !{ float 5.0 } br label %out bb2: %f = fadd double %x, 1.0, !fpmath !{ float 7.5 } br label %out out: ret void } !0 = !{ i8 0, i8 1 } !1 = !{ i8 3, i8 5 } !2 = !{} !3 = !{ i8 7, i8 9 } ;. ; CHECK: [[RNG0]] = !{i8 0, i8 1, i8 3, i8 5} ; CHECK: [[RNG1]] = !{i8 0, i8 1, i8 3, i8 5, i8 7, i8 9} ; CHECK: [[META2:![0-9]+]] = !{} ; CHECK: [[META3:![0-9]+]] = !{i64 10} ; CHECK: [[RNG4]] = !{i32 0, i32 10} ; CHECK: [[META5:![0-9]+]] = !{i64 4} ; CHECK: [[META6:![0-9]+]] = !{float 2.500000e+00} ;.