1 ; Test 32-bit atomic additions. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s 4 5 ; Check addition of a variable. 6 define i32 @f1(i32 %dummy, i32 *%src, i32 %b) { 7 ; CHECK-LABEL: f1: 8 ; CHECK: l %r2, 0(%r3) 9 ; CHECK: [[LABEL:\.[^:]*]]: 10 ; CHECK: lr %r0, %r2 11 ; CHECK: ar %r0, %r4 12 ; CHECK: cs %r2, %r0, 0(%r3) 13 ; CHECK: jl [[LABEL]] 14 ; CHECK: br %r14 15 %res = atomicrmw add i32 *%src, i32 %b seq_cst 16 ret i32 %res 17 } 18 19 ; Check addition of 1, which can use AHI. 20 define i32 @f2(i32 %dummy, i32 *%src) { 21 ; CHECK-LABEL: f2: 22 ; CHECK: l %r2, 0(%r3) 23 ; CHECK: [[LABEL:\.[^:]*]]: 24 ; CHECK: lr %r0, %r2 25 ; CHECK: ahi %r0, 1 26 ; CHECK: cs %r2, %r0, 0(%r3) 27 ; CHECK: jl [[LABEL]] 28 ; CHECK: br %r14 29 %res = atomicrmw add i32 *%src, i32 1 seq_cst 30 ret i32 %res 31 } 32 33 ; Check the high end of the AHI range. 34 define i32 @f3(i32 %dummy, i32 *%src) { 35 ; CHECK-LABEL: f3: 36 ; CHECK: ahi %r0, 32767 37 ; CHECK: br %r14 38 %res = atomicrmw add i32 *%src, i32 32767 seq_cst 39 ret i32 %res 40 } 41 42 ; Check the next value up, which must use AFI. 43 define i32 @f4(i32 %dummy, i32 *%src) { 44 ; CHECK-LABEL: f4: 45 ; CHECK: afi %r0, 32768 46 ; CHECK: br %r14 47 %res = atomicrmw add i32 *%src, i32 32768 seq_cst 48 ret i32 %res 49 } 50 51 ; Check the high end of the AFI range. 52 define i32 @f5(i32 %dummy, i32 *%src) { 53 ; CHECK-LABEL: f5: 54 ; CHECK: afi %r0, 2147483647 55 ; CHECK: br %r14 56 %res = atomicrmw add i32 *%src, i32 2147483647 seq_cst 57 ret i32 %res 58 } 59 60 ; Check the next value up, which gets treated as a negative operand. 61 define i32 @f6(i32 %dummy, i32 *%src) { 62 ; CHECK-LABEL: f6: 63 ; CHECK: afi %r0, -2147483648 64 ; CHECK: br %r14 65 %res = atomicrmw add i32 *%src, i32 2147483648 seq_cst 66 ret i32 %res 67 } 68 69 ; Check addition of -1, which can use AHI. 70 define i32 @f7(i32 %dummy, i32 *%src) { 71 ; CHECK-LABEL: f7: 72 ; CHECK: ahi %r0, -1 73 ; CHECK: br %r14 74 %res = atomicrmw add i32 *%src, i32 -1 seq_cst 75 ret i32 %res 76 } 77 78 ; Check the low end of the AHI range. 79 define i32 @f8(i32 %dummy, i32 *%src) { 80 ; CHECK-LABEL: f8: 81 ; CHECK: ahi %r0, -32768 82 ; CHECK: br %r14 83 %res = atomicrmw add i32 *%src, i32 -32768 seq_cst 84 ret i32 %res 85 } 86 87 ; Check the next value down, which must use AFI instead. 88 define i32 @f9(i32 %dummy, i32 *%src) { 89 ; CHECK-LABEL: f9: 90 ; CHECK: afi %r0, -32769 91 ; CHECK: br %r14 92 %res = atomicrmw add i32 *%src, i32 -32769 seq_cst 93 ret i32 %res 94 } 95
