78 lines
2.9 KiB
LLVM
78 lines
2.9 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 | FileCheck %s -check-prefix=ALL -check-prefix=CHECK
|
|
; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 -arm-assume-misaligned-load-store | FileCheck %s -check-prefix=ALL -check-prefix=CONSERVATIVE
|
|
|
|
@X = external global [0 x i32] ; <[0 x i32]*> [#uses=5]
|
|
|
|
define i32 @t1() "no-frame-pointer-elim"="true" {
|
|
; ALL-LABEL: t1:
|
|
; ALL: push {r7, lr}
|
|
; CHECK: ldrd
|
|
; CONSERVATIVE-NOT: ldrd
|
|
; CONSERVATIVE-NOT: ldm
|
|
; ALL: pop {r7, pc}
|
|
%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 0) ; <i32> [#uses=1]
|
|
%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
|
|
%tmp4 = call i32 @f1( i32 %tmp, i32 %tmp3 ) ; <i32> [#uses=1]
|
|
ret i32 %tmp4
|
|
}
|
|
|
|
define i32 @t2() "no-frame-pointer-elim"="true" {
|
|
; ALL-LABEL: t2:
|
|
; ALL: push {r7, lr}
|
|
; CHECK: ldm
|
|
; CONSERVATIVE-NOT: ldrd
|
|
; CONSERVATIVE-NOT: ldm
|
|
; ALL: pop {r7, pc}
|
|
%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
|
|
%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
|
|
%tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 4) ; <i32> [#uses=1]
|
|
%tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
|
|
ret i32 %tmp6
|
|
}
|
|
|
|
define i32 @t3() "no-frame-pointer-elim"="true" {
|
|
; ALL-LABEL: t3:
|
|
; ALL: push {r7, lr}
|
|
; CHECK: ldm
|
|
; CONSERVATIVE-NOT: ldrd
|
|
; CONSERVATIVE-NOT: ldm
|
|
; ALL: pop {r7, pc}
|
|
%tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1]
|
|
%tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1]
|
|
%tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1]
|
|
%tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1]
|
|
ret i32 %tmp6
|
|
}
|
|
|
|
@g = common global i32* null
|
|
|
|
define void @t4(i32 %a0, i32 %a1, i32 %a2) "no-frame-pointer-elim"="true" {
|
|
; ALL-LABEL: t4:
|
|
; ALL: stm.w sp, {r0, r1, r2}
|
|
; ALL: bl _ext
|
|
; ALL: ldm.w sp, {r0, r1, r2}
|
|
; ALL: bl _f2
|
|
%arr = alloca [4 x i32], align 4
|
|
%p0 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 0
|
|
%p1 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 1
|
|
%p2 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 2
|
|
store i32* %p0, i32** @g, align 8
|
|
|
|
store i32 %a0, i32* %p0, align 4
|
|
store i32 %a1, i32* %p1, align 4
|
|
store i32 %a2, i32* %p2, align 4
|
|
call void @ext()
|
|
|
|
%v0 = load i32, i32* %p0, align 4
|
|
%v1 = load i32, i32* %p1, align 4
|
|
%v2 = load i32, i32* %p2, align 4
|
|
call i32 @f2(i32 %v0, i32 %v1, i32 %v2)
|
|
ret void
|
|
}
|
|
|
|
declare i32 @f1(i32, i32)
|
|
|
|
declare i32 @f2(i32, i32, i32)
|
|
|
|
declare void @ext()
|