llvm-6502/test/Transforms/ScalarRepl/copy-aggregate.ll

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; RUN: opt < %s -scalarrepl -S | not grep alloca
; PR3290
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64"
;; Store of integer to whole alloca struct.
define i32 @test1(i64 %V) nounwind {
%X = alloca {{i32, i32}}
%Y = bitcast {{i32,i32}}* %X to i64*
store i64 %V, i64* %Y
%A = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 0
%B = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 1
%a = load i32* %A
%b = load i32* %B
%c = add i32 %a, %b
ret i32 %c
}
;; Store of integer to whole struct/array alloca.
define float @test2(i128 %V) nounwind {
%X = alloca {[4 x float]}
%Y = bitcast {[4 x float]}* %X to i128*
store i128 %V, i128* %Y
%A = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 0
%B = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 3
%a = load float* %A
%b = load float* %B
%c = fadd float %a, %b
ret float %c
}
;; Load of whole alloca struct as integer
define i64 @test3(i32 %a, i32 %b) nounwind {
%X = alloca {{i32, i32}}
%A = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 0
%B = getelementptr {{i32,i32}}* %X, i32 0, i32 0, i32 1
store i32 %a, i32* %A
store i32 %b, i32* %B
%Y = bitcast {{i32,i32}}* %X to i64*
%Z = load i64* %Y
ret i64 %Z
}
;; load of integer from whole struct/array alloca.
define i128 @test4(float %a, float %b) nounwind {
%X = alloca {[4 x float]}
%A = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 0
%B = getelementptr {[4 x float]}* %X, i32 0, i32 0, i32 3
store float %a, float* %A
store float %b, float* %B
%Y = bitcast {[4 x float]}* %X to i128*
%V = load i128* %Y
ret i128 %V
}