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[InstCombine] Bail out of casting calls when a conversion from/to byv…
…al is involved. Fixes #58307 Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D135738 (cherry picked from commit 86e57e6)
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Original file line number | Diff line number | Diff line change |
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | ||
; Check that function calls involving conversion from/to byval aren't transformed. | ||
; RUN: opt < %s -passes=instcombine -S | FileCheck %s | ||
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||
%Foo = type { i64 } | ||
define i64 @foo (ptr byval(%Foo) %foo) { | ||
; CHECK-LABEL: @foo( | ||
; CHECK-NEXT: [[TMP1:%.*]] = load i64, ptr [[FOO:%.*]], align 4 | ||
; CHECK-NEXT: ret i64 [[TMP1]] | ||
; | ||
%1 = load i64, ptr %foo, align 4 | ||
ret i64 %1 | ||
} | ||
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||
define i64 @bar(i64 %0) { | ||
; CHECK-LABEL: @bar( | ||
; CHECK-NEXT: [[TMP2:%.*]] = tail call i64 @foo(i64 [[TMP0:%.*]]) | ||
; CHECK-NEXT: ret i64 [[TMP2]] | ||
; | ||
%2 = tail call i64 @foo(i64 %0) | ||
ret i64 %2 | ||
} | ||
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||
define i64 @qux(ptr byval(%Foo) %qux) { | ||
; CHECK-LABEL: @qux( | ||
; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @bar(ptr nonnull byval([[FOO:%.*]]) [[QUX:%.*]]) | ||
; CHECK-NEXT: ret i64 [[TMP1]] | ||
; | ||
%1 = tail call i64 @bar(ptr byval(%Foo) %qux) | ||
ret i64 %1 | ||
} |