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 -mtriple=i686-- -O0 | FileCheck %s --check-prefix=X32
5 ; GEP indices are interpreted as signed integers, so they
6 ; should be sign-extended to 64 bits on 64-bit targets.
8 define 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]
13 ; X32: movl (%eax,%ecx,4), %eax
17 ; X64: movslq %e[[A0:di|cx]], %rax
18 ; X64: movl (%r[[A1:si|dx]],%rax,4), %eax
22 define 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]
27 ; X32: movl ({{%e[a-z]+}},{{%e[a-z]+}},4), %e
31 ; X64: movl (%r[[A1]],%r[[A0]],4), %eax
38 define i8 @test3(i8* %start) nounwind {
40 %A = getelementptr i8, i8* %start, i64 -2 ; <i8*> [#uses=1]
41 %B = load i8, i8* %A, align 1 ; <i8> [#uses=1]
46 ; X32: movl 4(%esp), %eax
47 ; X32: movb -2(%eax), %al
51 ; X64: movb -2(%r[[A0]]), %al
56 define double @test4(i64 %x, double* %p) nounwind {
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]
70 ; X32: 128(%e{{.*}},%e{{.*}},8)
72 ; X64: 128(%r{{.*}},%r{{.*}},8)
75 ; PR8961 - Make sure the sext for the GEP addressing comes before the load that
77 define 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
84 ; X64: movslq %e[[A1]], [[R0:%r[a-z]+]]
85 ; X64-NEXT: (%r[[A0]],[[R0]]),
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
92 define void @test6() personality i32 (...)* @__gxx_personality_v0 {
93 if.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
100 invoke.cont16: ; preds = %if.then14
101 %arrayidx18 = getelementptr inbounds i8, i8* %call17, i64 %dec
102 store i8 0, i8* %arrayidx18
105 lpad: ; preds = %if.end19, %if.then14, %if.end, %entry
106 %exn = landingpad {i8*, i32}
110 declare i8* @_ZNK18G__FastAllocString4dataEv() nounwind
113 ; PR10605 / rdar://9930964 - Don't fold loads incorrectly. The load should
114 ; happen before the store.
115 define i32 @test7({i32,i32,i32}* %tmp1, i32 %tmp71, i32 %tmp63) nounwind {
117 ; X64: movl 8({{%rdi|%rcx}}), %eax
118 ; X64: movl $4, 8({{%rdi|%rcx}})
121 %tmp29 = getelementptr inbounds {i32,i32,i32}, {i32,i32,i32}* %tmp1, i32 0, i32 2
122 %tmp30 = load i32, i32* %tmp29, align 4
124 %p2 = getelementptr inbounds {i32,i32,i32}, {i32,i32,i32}* %tmp1, i32 0, i32 2
125 store i32 4, i32* %p2
127 %tmp72 = or i32 %tmp71, %tmp30
128 %tmp73 = icmp ne i32 %tmp63, 32
129 br i1 %tmp73, label %T, label %F
138 declare i32 @__gxx_personality_v0(...)