mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-29 13:29:28 +00:00
accessed at least once as a vector. This prevents it from compiling the example in not-a-vector into: define double @test(double %A, double %B) { %tmp4 = insertelement <7 x double> undef, double %A, i32 0 %tmp = insertelement <7 x double> %tmp4, double %B, i32 4 %tmp2 = extractelement <7 x double> %tmp, i32 4 ret double %tmp2 } instead, producing the integer code. Producing vectors when they aren't otherwise in the program is dangerous because a lot of other code treats them carefully and doesn't want to break them down. OTOH, many things want to break down tasty i448's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63638 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
558 B
LLVM
20 lines
558 B
LLVM
; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep alloca
|
|
; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep {7 x double}
|
|
; RUN: llvm-as < %s | opt -scalarrepl -instcombine | llvm-dis | grep {ret double %B}
|
|
|
|
define double @test(double %A, double %B) {
|
|
%ARR = alloca [7 x i64]
|
|
%C = bitcast [7 x i64]* %ARR to double*
|
|
store double %A, double* %C
|
|
|
|
%D = getelementptr [7 x i64]* %ARR, i32 0, i32 4
|
|
%E = bitcast i64* %D to double*
|
|
store double %B, double* %E
|
|
|
|
%F = getelementptr double* %C, i32 4
|
|
%G = load double* %F
|
|
ret double %G
|
|
}
|
|
|
|
|