88 lines
2.8 KiB
LLVM
88 lines
2.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
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; RUN: opt < %s -S -ipsccp | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @fn2(i32* %P) {
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; CHECK-LABEL: define {{[^@]+}}@fn2
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; CHECK-SAME: (i32* [[P:%.*]])
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[IF_END:%.*]]
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; CHECK: for.cond1:
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; CHECK-NEXT: br i1 false, label [[IF_END]], label [[IF_END]]
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; CHECK: if.end:
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @fn1(i32 undef)
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; CHECK-NEXT: store i32 [[CALL]], i32* [[P]]
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; CHECK-NEXT: br label [[FOR_COND1:%.*]]
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;
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entry:
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br label %if.end
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for.cond1: ; preds = %if.end, %for.end
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br i1 undef, label %if.end, label %if.end
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if.end: ; preds = %lbl, %for.cond1
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%e.2 = phi i32* [ undef, %entry ], [ null, %for.cond1 ], [ null, %for.cond1 ]
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%0 = load i32, i32* %e.2, align 4
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%call = call i32 @fn1(i32 %0)
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store i32 %call, i32* %P
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br label %for.cond1
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}
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define internal i32 @fn1(i32 %p1) {
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; CHECK-LABEL: define {{[^@]+}}@fn1
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; CHECK-SAME: (i32 [[P1:%.*]])
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 undef, 0
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; CHECK-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], i32 undef, i32 undef
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; CHECK-NEXT: ret i32 [[COND]]
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;
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entry:
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%tobool = icmp ne i32 %p1, 0
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%cond = select i1 %tobool, i32 %p1, i32 %p1
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ret i32 %cond
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}
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define void @fn_no_null_opt(i32* %P) #0 {
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; CHECK-LABEL: define {{[^@]+}}@fn_no_null_opt
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; CHECK-SAME: (i32* [[P:%.*]])
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[IF_END:%.*]]
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; CHECK: for.cond1:
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; CHECK-NEXT: br i1 false, label [[IF_END]], label [[IF_END]]
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; CHECK: if.end:
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* null, align 4
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @fn0(i32 [[TMP0]])
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; CHECK-NEXT: store i32 [[CALL]], i32* [[P]]
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; CHECK-NEXT: br label [[FOR_COND1:%.*]]
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;
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entry:
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br label %if.end
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for.cond1: ; preds = %if.end, %for.end
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br i1 undef, label %if.end, label %if.end
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if.end: ; preds = %lbl, %for.cond1
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%e.2 = phi i32* [ undef, %entry ], [ null, %for.cond1 ], [ null, %for.cond1 ]
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%0 = load i32, i32* %e.2, align 4
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%call = call i32 @fn0(i32 %0)
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store i32 %call, i32* %P
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br label %for.cond1
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}
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define internal i32 @fn0(i32 %p1) {
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; CHECK-LABEL: define {{[^@]+}}@fn0
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; CHECK-SAME: (i32 [[P1:%.*]])
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[P1]], 0
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; CHECK-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], i32 [[P1]], i32 [[P1]]
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; CHECK-NEXT: ret i32 [[COND]]
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;
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entry:
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%tobool = icmp ne i32 %p1, 0
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%cond = select i1 %tobool, i32 %p1, i32 %p1
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ret i32 %cond
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}
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attributes #0 = { null_pointer_is_valid }
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