5887006510
Assumes either have a boolean condition, or a number of attribute based operand bundles. Currently, we also allow mixing both forms, though we don't make use of this in practice. This adds additional complexity for code dealing with assumes. Forbid mixing both forms, by requiring that assumes with operand bundles have an i1 true condition.
34 lines
1.0 KiB
LLVM
34 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -passes=alignment-from-assumptions -S < %s | FileCheck %s
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; The alignment assumption is a global, which has users in a different
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; function. Test that in this case the dominator tree is only queried with
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; blocks from the same function.
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@global = external constant [192 x i8]
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define void @fn1() {
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; CHECK-LABEL: define void @fn1() {
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; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr @global, i64 1) ]
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; CHECK-NEXT: ret void
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;
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call void @llvm.assume(i1 true) [ "align"(ptr @global, i64 1) ]
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ret void
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}
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define void @fn2() {
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; CHECK-LABEL: define void @fn2() {
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; CHECK-NEXT: ret void
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; CHECK: [[LOOP:.*]]:
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, ptr @global, i64 0
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; CHECK-NEXT: [[LOAD:%.*]] = load i64, ptr [[GEP]], align 1
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; CHECK-NEXT: br label %[[LOOP]]
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;
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ret void
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loop:
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%gep = getelementptr inbounds i8, ptr @global, i64 0
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%load = load i64, ptr %gep, align 1
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br label %loop
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}
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