1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes 2; RUN: opt < %s -S -passes=ipsccp | FileCheck %s 3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-unknown-linux-gnu" 5 6define void @fn2(ptr %P, i1 %arg) { 7; CHECK-LABEL: define {{[^@]+}}@fn2 8; CHECK-SAME: (ptr [[P:%.*]], i1 [[ARG:%.*]]) { 9; CHECK-NEXT: entry: 10; CHECK-NEXT: br label [[IF_END:%.*]] 11; CHECK: for.cond1: 12; CHECK-NEXT: br i1 [[ARG]], label [[IF_END]], label [[IF_END]] 13; CHECK: if.end: 14; CHECK-NEXT: [[CALL:%.*]] = call i32 @fn1(i32 undef) 15; CHECK-NEXT: store i32 [[CALL]], ptr [[P]], align 4 16; CHECK-NEXT: br label [[FOR_COND1:%.*]] 17; 18entry: 19 br label %if.end 20 21for.cond1: ; preds = %if.end, %for.end 22 br i1 %arg, label %if.end, label %if.end 23 24if.end: ; preds = %lbl, %for.cond1 25 %e.2 = phi ptr [ undef, %entry ], [ null, %for.cond1 ], [ null, %for.cond1 ] 26 %0 = load i32, ptr %e.2, align 4 27 %call = call i32 @fn1(i32 %0) 28 store i32 %call, ptr %P 29 br label %for.cond1 30} 31 32define internal i32 @fn1(i32 %p1) { 33; CHECK-LABEL: define {{[^@]+}}@fn1 34; CHECK-SAME: (i32 [[P1:%.*]]) { 35; CHECK-NEXT: entry: 36; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 undef, 0 37; CHECK-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], i32 undef, i32 undef 38; CHECK-NEXT: ret i32 [[COND]] 39; 40entry: 41 %tobool = icmp ne i32 %p1, 0 42 %cond = select i1 %tobool, i32 %p1, i32 %p1 43 ret i32 %cond 44} 45 46define void @fn_no_null_opt(ptr %P, i1 %arg) #0 { 47; CHECK-LABEL: define {{[^@]+}}@fn_no_null_opt 48; CHECK-SAME: (ptr [[P:%.*]], i1 [[ARG:%.*]]) #[[ATTR0:[0-9]+]] { 49; CHECK-NEXT: entry: 50; CHECK-NEXT: br label [[IF_END:%.*]] 51; CHECK: for.cond1: 52; CHECK-NEXT: br i1 [[ARG]], label [[IF_END]], label [[IF_END]] 53; CHECK: if.end: 54; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr null, align 4 55; CHECK-NEXT: [[CALL:%.*]] = call i32 @fn0(i32 [[TMP0]]) 56; CHECK-NEXT: store i32 [[CALL]], ptr [[P]], align 4 57; CHECK-NEXT: br label [[FOR_COND1:%.*]] 58; 59entry: 60 br label %if.end 61 62for.cond1: ; preds = %if.end, %for.end 63 br i1 %arg, label %if.end, label %if.end 64 65if.end: ; preds = %lbl, %for.cond1 66 %e.2 = phi ptr [ undef, %entry ], [ null, %for.cond1 ], [ null, %for.cond1 ] 67 %0 = load i32, ptr %e.2, align 4 68 %call = call i32 @fn0(i32 %0) 69 store i32 %call, ptr %P 70 br label %for.cond1 71} 72 73define internal i32 @fn0(i32 %p1) { 74; CHECK-LABEL: define {{[^@]+}}@fn0 75; CHECK-SAME: (i32 [[P1:%.*]]) { 76; CHECK-NEXT: entry: 77; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[P1]], 0 78; CHECK-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], i32 [[P1]], i32 [[P1]] 79; CHECK-NEXT: ret i32 [[COND]] 80; 81entry: 82 %tobool = icmp ne i32 %p1, 0 83 %cond = select i1 %tobool, i32 %p1, i32 %p1 84 ret i32 %cond 85} 86 87attributes #0 = { null_pointer_is_valid } 88