; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=instcombine -S < %s | FileCheck %s target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" target triple = "x86_64-grtev4-linux-gnu" define i32 @test_plain(i1 %f, ptr %a, ptr %b) { ; CHECK-LABEL: @test_plain( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[B:%.*]] = select i1 [[F:%.*]], ptr [[A:%.*]], ptr [[B1:%.*]] ; CHECK-NEXT: [[B_VAL:%.*]] = load i32, ptr [[B]], align 8 ; CHECK-NEXT: ret i32 [[B_VAL]] ; entry: %sel = select i1 %f, ptr %a, ptr %b %l = load i32, ptr %sel, align 8 ret i32 %l } ; Don't speculate as the condition may control which memory is valid from ; sanitizer perspective. define i32 @test_asan(i1 %f) sanitize_address { ; CHECK-LABEL: @test_asan( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[A:%.*]] = alloca i32, align 8 ; CHECK-NEXT: [[B:%.*]] = alloca i32, align 8 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[F:%.*]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[SEL]], align 8 ; CHECK-NEXT: ret i32 [[L]] ; entry: %a = alloca i32, align 8 %b = alloca i32, align 8 %sel = select i1 %f, ptr %a, ptr %b %l = load i32, ptr %sel, align 8 ret i32 %l } ; Don't speculate as the condition may control which memory is valid from ; sanitizer perspective. define i32 @test_hwasan(i1 %f) sanitize_hwaddress { ; CHECK-LABEL: @test_hwasan( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[A:%.*]] = alloca i32, align 8 ; CHECK-NEXT: [[B:%.*]] = alloca i32, align 8 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[F:%.*]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[SEL]], align 8 ; CHECK-NEXT: ret i32 [[L]] ; entry: %a = alloca i32, align 8 %b = alloca i32, align 8 %sel = select i1 %f, ptr %a, ptr %b %l = load i32, ptr %sel, align 8 ret i32 %l } ; Don't speculate as the condition may control which memory is valid from ; sanitizer perspective. define i32 @test_tsan(i1 %f) sanitize_thread { ; CHECK-LABEL: @test_tsan( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[A:%.*]] = alloca i32, align 8 ; CHECK-NEXT: [[B:%.*]] = alloca i32, align 8 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[F:%.*]], ptr [[A]], ptr [[B]] ; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[SEL]], align 8 ; CHECK-NEXT: ret i32 [[L]] ; entry: %a = alloca i32, align 8 %b = alloca i32, align 8 %sel = select i1 %f, ptr %a, ptr %b %l = load i32, ptr %sel, align 8 ret i32 %l } ; Msan just propagates shadow, even if speculated load accesses uninitialized ; value, instrumentation will select shadow of the desired value anyway. define i32 @test_msan(i1 %f, ptr %a, ptr %b) sanitize_memory { ; CHECK-LABEL: @test_msan( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[B:%.*]] = select i1 [[F:%.*]], ptr [[A:%.*]], ptr [[B1:%.*]] ; CHECK-NEXT: [[B_VAL:%.*]] = load i32, ptr [[B]], align 8 ; CHECK-NEXT: ret i32 [[B_VAL]] ; entry: %sel = select i1 %f, ptr %a, ptr %b %l = load i32, ptr %sel, align 8 ret i32 %l }