https://bugs.llvm.org/show_bug.cgi?id=45773
Bug ID: 45773
Summary: [MergeFuncs] Shufflevectors with different mask merged
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Interprocedural Optimizations
Assignee: unassignedb...@nondot.org
Reporter: nikita....@gmail.com
CC: llvm-bugs@lists.llvm.org
opt -mergefunc
define internal <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2) {
%x = shufflevector <2 x i32> %v1, <2 x i32> %v2, <2 x i32> <i32 0, i32 1>
ret <2 x i32> %x
}
define internal <2 x i32> @test2(<2 x i32> %v1, <2 x i32> %v2) {
%x = shufflevector <2 x i32> %v1, <2 x i32> %v2, <2 x i32> <i32 1, i32 0>
ret <2 x i32> %x
}
define void @caller(<2 x i32> %v1, <2 x i32> %v2) {
call <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2)
call <2 x i32> @test2(<2 x i32> %v1, <2 x i32> %v2)
ret void
}
Results in:
define internal <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2) {
%x = shufflevector <2 x i32> %v1, <2 x i32> %v2, <2 x i32> <i32 0, i32 1>
ret <2 x i32> %x
}
define void @caller(<2 x i32> %v1, <2 x i32> %v2) {
%1 = call <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2)
%2 = call <2 x i32> @test1(<2 x i32> %v1, <2 x i32> %v2)
ret void
}
This is due to the recent migration from an operand to special state.
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