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1; RUN: llc < %s -mtriple=x86_64-linux -O0 | FileCheck %s --check-prefix=X64
2; RUN: llc < %s -mtriple=x86_64-windows-itanium -O0 | FileCheck %s --check-prefix=X64
3; RUN: llc < %s -march=x86 -O0 | FileCheck %s --check-prefix=X32
4
5; GEP indices are interpreted as signed integers, so they
6; should be sign-extended to 64 bits on 64-bit targets.
7; PR3181
8define i32 @test1(i32 %t3, i32* %t1) nounwind {
9       %t9 = getelementptr i32, i32* %t1, i32 %t3           ; <i32*> [#uses=1]
10       %t15 = load i32, i32* %t9            ; <i32> [#uses=1]
11       ret i32 %t15
12; X32-LABEL: test1:
13; X32:  	movl	(%eax,%ecx,4), %eax
14; X32:  	ret
15
16; X64-LABEL: test1:
17; X64:  	movslq	%e[[A0:di|cx]], %rax
18; X64:  	movl	(%r[[A1:si|dx]],%rax,4), %eax
19; X64:  	ret
20
21}
22define i32 @test2(i64 %t3, i32* %t1) nounwind {
23       %t9 = getelementptr i32, i32* %t1, i64 %t3           ; <i32*> [#uses=1]
24       %t15 = load i32, i32* %t9            ; <i32> [#uses=1]
25       ret i32 %t15
26; X32-LABEL: test2:
27; X32:  	movl	(%edx,%ecx,4), %e
28; X32:  	ret
29
30; X64-LABEL: test2:
31; X64:  	movl	(%r[[A1]],%r[[A0]],4), %eax
32; X64:  	ret
33}
34
35
36
37; PR4984
38define i8 @test3(i8* %start) nounwind {
39entry:
40  %A = getelementptr i8, i8* %start, i64 -2               ; <i8*> [#uses=1]
41  %B = load i8, i8* %A, align 1                       ; <i8> [#uses=1]
42  ret i8 %B
43
44
45; X32-LABEL: test3:
46; X32:  	movl	4(%esp), %eax
47; X32:  	movb	-2(%eax), %al
48; X32:  	ret
49
50; X64-LABEL: test3:
51; X64:  	movb	-2(%r[[A0]]), %al
52; X64:  	ret
53
54}
55
56define double @test4(i64 %x, double* %p) nounwind {
57entry:
58  %x.addr = alloca i64, align 8                   ; <i64*> [#uses=2]
59  %p.addr = alloca double*, align 8               ; <double**> [#uses=2]
60  store i64 %x, i64* %x.addr
61  store double* %p, double** %p.addr
62  %tmp = load i64, i64* %x.addr                        ; <i64> [#uses=1]
63  %add = add nsw i64 %tmp, 16                     ; <i64> [#uses=1]
64  %tmp1 = load double*, double** %p.addr                   ; <double*> [#uses=1]
65  %arrayidx = getelementptr inbounds double, double* %tmp1, i64 %add ; <double*> [#uses=1]
66  %tmp2 = load double, double* %arrayidx                  ; <double> [#uses=1]
67  ret double %tmp2
68
69; X32-LABEL: test4:
70; X32: 128(%e{{.*}},%e{{.*}},8)
71; X64-LABEL: test4:
72; X64: 128(%r{{.*}},%r{{.*}},8)
73}
74
75; PR8961 - Make sure the sext for the GEP addressing comes before the load that
76; is folded.
77define i64 @test5(i8* %A, i32 %I, i64 %B) nounwind {
78  %v8 = getelementptr i8, i8* %A, i32 %I
79  %v9 = bitcast i8* %v8 to i64*
80  %v10 = load i64, i64* %v9
81  %v11 = add i64 %B, %v10
82  ret i64 %v11
83; X64-LABEL: test5:
84; X64: movslq	%e[[A1]], %rax
85; X64-NEXT: (%r[[A0]],%rax),
86; X64: ret
87}
88
89; PR9500, rdar://9156159 - Don't do non-local address mode folding,
90; because it may require values which wouldn't otherwise be live out
91; of their blocks.
92define void @test6() personality i32 (...)* @__gxx_personality_v0 {
93if.end:                                           ; preds = %if.then, %invoke.cont
94  %tmp15 = load i64, i64* undef
95  %dec = add i64 %tmp15, 13
96  store i64 %dec, i64* undef
97  %call17 = invoke i8* @_ZNK18G__FastAllocString4dataEv()
98          to label %invoke.cont16 unwind label %lpad
99
100invoke.cont16:                                    ; preds = %if.then14
101  %arrayidx18 = getelementptr inbounds i8, i8* %call17, i64 %dec
102  store i8 0, i8* %arrayidx18
103  unreachable
104
105lpad:                                             ; preds = %if.end19, %if.then14, %if.end, %entry
106  %exn = landingpad {i8*, i32}
107            cleanup
108  unreachable
109}
110declare i8* @_ZNK18G__FastAllocString4dataEv() nounwind
111
112
113; PR10605 / rdar://9930964 - Don't fold loads incorrectly.  The load should
114; happen before the store.
115define i32 @test7({i32,i32,i32}* %tmp1, i32 %tmp71, i32 %tmp63) nounwind  {
116; X64-LABEL: test7:
117; X64:    movl	8({{%rdi|%rcx}}), %eax
118; X64:     movl	$4, 8({{%rdi|%rcx}})
119
120
121  %tmp29 = getelementptr inbounds {i32,i32,i32}, {i32,i32,i32}* %tmp1, i32 0, i32 2
122  %tmp30 = load i32, i32* %tmp29, align 4
123
124  %p2 = getelementptr inbounds {i32,i32,i32}, {i32,i32,i32}* %tmp1, i32 0, i32 2
125  store i32 4, i32* %p2
126
127  %tmp72 = or i32 %tmp71, %tmp30
128  %tmp73 = icmp ne i32 %tmp63, 32
129  br i1 %tmp73, label %T, label %F
130
131T:
132  ret i32 %tmp72
133
134F:
135  ret i32 4
136}
137
138declare i32 @__gxx_personality_v0(...)
139