2019-04-17 12:52:47 +08:00
|
|
|
; RUN: opt -mergefunc -S < %s | FileCheck %s
|
|
|
|
|
|
|
|
; CHECK-LABEL: @int_ptr_arg_different
|
|
|
|
; CHECK-NEXT: call void asm
|
|
|
|
|
[IR] Redefine Freeze instruction
Summary:
This patch redefines freeze instruction from being UnaryOperator to a subclass of UnaryInstruction.
ConstantExpr freeze is removed, as discussed in the previous review.
FreezeOperator is not added because there's no ConstantExpr freeze.
`freeze i8* null` test is added to `test/Bindings/llvm-c/freeze.ll` as well, because the null pointer-related bug in `tools/llvm-c/echo.cpp` is now fixed.
InstVisitor has visitFreeze now because freeze is not unaryop anymore.
Reviewers: whitequark, deadalnix, craig.topper, jdoerfert, lebedev.ri
Reviewed By: craig.topper, lebedev.ri
Subscribers: regehr, nlopes, mehdi_amini, hiraditya, steven_wu, dexonsmith, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69932
2019-11-07 00:17:49 +08:00
|
|
|
; CHECK-LABEL: @int_ptr_null
|
|
|
|
; CHECK-NEXT: tail call void @float_ptr_null()
|
|
|
|
|
2019-04-17 12:52:47 +08:00
|
|
|
; CHECK-LABEL: @int_ptr_arg_same
|
|
|
|
; CHECK-NEXT: %2 = bitcast i32* %0 to float*
|
|
|
|
; CHECK-NEXT: tail call void @float_ptr_arg_same(float* %2)
|
|
|
|
|
|
|
|
; Used to satisfy minimum size limit
|
|
|
|
declare void @stuff()
|
|
|
|
|
|
|
|
; Can be merged
|
|
|
|
define void @float_ptr_null() {
|
|
|
|
call void asm "nop", "r"(float* null)
|
|
|
|
call void @stuff()
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @int_ptr_null() {
|
|
|
|
call void asm "nop", "r"(i32* null)
|
|
|
|
call void @stuff()
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Can be merged (uses same argument differing by pointer type)
|
|
|
|
define void @float_ptr_arg_same(float*) {
|
|
|
|
call void asm "nop", "r"(float* %0)
|
|
|
|
call void @stuff()
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @int_ptr_arg_same(i32*) {
|
|
|
|
call void asm "nop", "r"(i32* %0)
|
|
|
|
call void @stuff()
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
; Can not be merged (uses different arguments)
|
|
|
|
define void @float_ptr_arg_different(float*, float*) {
|
|
|
|
call void asm "nop", "r"(float* %0)
|
|
|
|
call void @stuff()
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @int_ptr_arg_different(i32*, i32*) {
|
|
|
|
call void asm "nop", "r"(i32* %1)
|
|
|
|
call void @stuff()
|
|
|
|
ret void
|
|
|
|
}
|