1 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 | FileCheck %s -check-prefix=ALL -check-prefix=CHECK 2 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mattr=+thumb2 -arm-assume-misaligned-load-store | FileCheck %s -check-prefix=ALL -check-prefix=CONSERVATIVE 3 4 @X = external global [0 x i32] ; <[0 x i32]*> [#uses=5] 5 6 define i32 @t1() { 7 ; ALL-LABEL: t1: 8 ; ALL: push {r7, lr} 9 ; CHECK: ldrd 10 ; CONSERVATIVE-NOT: ldrd 11 ; CONSERVATIVE-NOT: ldm 12 ; ALL: pop {r7, pc} 13 %tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 0) ; <i32> [#uses=1] 14 %tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1] 15 %tmp4 = call i32 @f1( i32 %tmp, i32 %tmp3 ) ; <i32> [#uses=1] 16 ret i32 %tmp4 17 } 18 19 define i32 @t2() { 20 ; ALL-LABEL: t2: 21 ; ALL: push {r7, lr} 22 ; CHECK: ldm 23 ; CONSERVATIVE-NOT: ldrd 24 ; CONSERVATIVE-NOT: ldm 25 ; ALL: pop {r7, pc} 26 %tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1] 27 %tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1] 28 %tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 4) ; <i32> [#uses=1] 29 %tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1] 30 ret i32 %tmp6 31 } 32 33 define i32 @t3() { 34 ; ALL-LABEL: t3: 35 ; ALL: push {r7, lr} 36 ; CHECK: ldm 37 ; CONSERVATIVE-NOT: ldrd 38 ; CONSERVATIVE-NOT: ldm 39 ; ALL: pop {r7, pc} 40 %tmp = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 1) ; <i32> [#uses=1] 41 %tmp3 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 2) ; <i32> [#uses=1] 42 %tmp5 = load i32, i32* getelementptr ([0 x i32], [0 x i32]* @X, i32 0, i32 3) ; <i32> [#uses=1] 43 %tmp6 = call i32 @f2( i32 %tmp, i32 %tmp3, i32 %tmp5 ) ; <i32> [#uses=1] 44 ret i32 %tmp6 45 } 46 47 @g = common global i32* null 48 49 define void @t4(i32 %a0, i32 %a1, i32 %a2) { 50 ; ALL-LABEL: t4: 51 ; ALL: stm.w sp, {r0, r1, r2} 52 ; ALL: bl _ext 53 ; ALL: ldm.w sp, {r0, r1, r2} 54 ; ALL: bl _f2 55 %arr = alloca [4 x i32], align 4 56 %p0 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 0 57 %p1 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 1 58 %p2 = getelementptr inbounds [4 x i32], [4 x i32]* %arr, i64 0, i64 2 59 store i32* %p0, i32** @g, align 8 60 61 store i32 %a0, i32* %p0, align 4 62 store i32 %a1, i32* %p1, align 4 63 store i32 %a2, i32* %p2, align 4 64 call void @ext() 65 66 %v0 = load i32, i32* %p0, align 4 67 %v1 = load i32, i32* %p1, align 4 68 %v2 = load i32, i32* %p2, align 4 69 call i32 @f2(i32 %v0, i32 %v1, i32 %v2) 70 ret void 71 } 72 73 declare i32 @f1(i32, i32) 74 75 declare i32 @f2(i32, i32, i32) 76 77 declare void @ext() 78
