1 ; Test 32-bit GPR accesses to a PC-relative location. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 @gsrc16 = global i16 1 6 @gsrc32 = global i32 1 7 @gdst16 = global i16 2 8 @gdst32 = global i32 2 9 @gsrc16u = global i16 1, align 1, section "foo" 10 @gsrc32u = global i32 1, align 2, section "foo" 11 @gdst16u = global i16 2, align 1, section "foo" 12 @gdst32u = global i32 2, align 2, section "foo" 13 @garray8 = global [2 x i8] [i8 100, i8 101] 14 @garray16 = global [2 x i16] [i16 102, i16 103] 15 16 ; Check sign-extending loads from i16. 17 define i32 @f1() { 18 ; CHECK-LABEL: f1: 19 ; CHECK: lhrl %r2, gsrc16 20 ; CHECK: br %r14 21 %val = load i16 *@gsrc16 22 %ext = sext i16 %val to i32 23 ret i32 %ext 24 } 25 26 ; Check zero-extending loads from i16. 27 define i32 @f2() { 28 ; CHECK-LABEL: f2: 29 ; CHECK: llhrl %r2, gsrc16 30 ; CHECK: br %r14 31 %val = load i16 *@gsrc16 32 %ext = zext i16 %val to i32 33 ret i32 %ext 34 } 35 36 ; Check truncating 16-bit stores. 37 define void @f3(i32 %val) { 38 ; CHECK-LABEL: f3: 39 ; CHECK: sthrl %r2, gdst16 40 ; CHECK: br %r14 41 %half = trunc i32 %val to i16 42 store i16 %half, i16 *@gdst16 43 ret void 44 } 45 46 ; Check plain loads and stores. 47 define void @f4() { 48 ; CHECK-LABEL: f4: 49 ; CHECK: lrl %r0, gsrc32 50 ; CHECK: strl %r0, gdst32 51 ; CHECK: br %r14 52 %val = load i32 *@gsrc32 53 store i32 %val, i32 *@gdst32 54 ret void 55 } 56 57 ; Repeat f1 with an unaligned variable. 58 define i32 @f5() { 59 ; CHECK-LABEL: f5: 60 ; CHECK: lgrl [[REG:%r[0-5]]], gsrc16u 61 ; CHECK: lh %r2, 0([[REG]]) 62 ; CHECK: br %r14 63 %val = load i16 *@gsrc16u, align 1 64 %ext = sext i16 %val to i32 65 ret i32 %ext 66 } 67 68 ; Repeat f2 with an unaligned variable. 69 define i32 @f6() { 70 ; CHECK-LABEL: f6: 71 ; CHECK: lgrl [[REG:%r[0-5]]], gsrc16u 72 ; CHECK: llh %r2, 0([[REG]]) 73 ; CHECK: br %r14 74 %val = load i16 *@gsrc16u, align 1 75 %ext = zext i16 %val to i32 76 ret i32 %ext 77 } 78 79 ; Repeat f3 with an unaligned variable. 80 define void @f7(i32 %val) { 81 ; CHECK-LABEL: f7: 82 ; CHECK: lgrl [[REG:%r[0-5]]], gdst16u 83 ; CHECK: sth %r2, 0([[REG]]) 84 ; CHECK: br %r14 85 %half = trunc i32 %val to i16 86 store i16 %half, i16 *@gdst16u, align 1 87 ret void 88 } 89 90 ; Repeat f4 with unaligned variables. 91 define void @f8() { 92 ; CHECK-LABEL: f8: 93 ; CHECK: larl [[REG:%r[0-5]]], gsrc32u 94 ; CHECK: l [[VAL:%r[0-5]]], 0([[REG]]) 95 ; CHECK: larl [[REG:%r[0-5]]], gdst32u 96 ; CHECK: st [[VAL]], 0([[REG]]) 97 ; CHECK: br %r14 98 %val = load i32 *@gsrc32u, align 2 99 store i32 %val, i32 *@gdst32u, align 2 100 ret void 101 } 102 103 ; Test a case where we want to use one LARL for accesses to two different 104 ; parts of a variable. 105 define void @f9() { 106 ; CHECK-LABEL: f9: 107 ; CHECK: larl [[REG:%r[0-5]]], garray8 108 ; CHECK: llc [[VAL:%r[0-5]]], 0([[REG]]) 109 ; CHECK: srl [[VAL]], 1 110 ; CHECK: stc [[VAL]], 1([[REG]]) 111 ; CHECK: br %r14 112 %ptr1 = getelementptr [2 x i8] *@garray8, i64 0, i64 0 113 %ptr2 = getelementptr [2 x i8] *@garray8, i64 0, i64 1 114 %val = load i8 *%ptr1 115 %shr = lshr i8 %val, 1 116 store i8 %shr, i8 *%ptr2 117 ret void 118 } 119 120 ; Test a case where we want to use separate relative-long addresses for 121 ; two different parts of a variable. 122 define void @f10() { 123 ; CHECK-LABEL: f10: 124 ; CHECK: llhrl [[VAL:%r[0-5]]], garray16 125 ; CHECK: srl [[VAL]], 1 126 ; CHECK: sthrl [[VAL]], garray16+2 127 ; CHECK: br %r14 128 %ptr1 = getelementptr [2 x i16] *@garray16, i64 0, i64 0 129 %ptr2 = getelementptr [2 x i16] *@garray16, i64 0, i64 1 130 %val = load i16 *%ptr1 131 %shr = lshr i16 %val, 1 132 store i16 %shr, i16 *%ptr2 133 ret void 134 } 135
