1 ; Test 32-bit atomic NANDs. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s 4 5 ; Check NANDs 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: nr %r0, %r4 12 ; CHECK: xilf %r0, 4294967295 13 ; CHECK: cs %r2, %r0, 0(%r3) 14 ; CHECK: jl [[LABEL]] 15 ; CHECK: br %r14 16 %res = atomicrmw nand i32 *%src, i32 %b seq_cst 17 ret i32 %res 18 } 19 20 ; Check NANDs of 1. 21 define i32 @f2(i32 %dummy, i32 *%src) { 22 ; CHECK-LABEL: f2: 23 ; CHECK: l %r2, 0(%r3) 24 ; CHECK: [[LABEL:\.[^ ]*]]: 25 ; CHECK: lr %r0, %r2 26 ; CHECK: nilf %r0, 1 27 ; CHECK: xilf %r0, 4294967295 28 ; CHECK: cs %r2, %r0, 0(%r3) 29 ; CHECK: jl [[LABEL]] 30 ; CHECK: br %r14 31 %res = atomicrmw nand i32 *%src, i32 1 seq_cst 32 ret i32 %res 33 } 34 35 ; Check NANDs of the low end of the NILH range. 36 define i32 @f3(i32 %dummy, i32 *%src) { 37 ; CHECK-LABEL: f3: 38 ; CHECK: nilh %r0, 0 39 ; CHECK: xilf %r0, 4294967295 40 ; CHECK: br %r14 41 %res = atomicrmw nand i32 *%src, i32 65535 seq_cst 42 ret i32 %res 43 } 44 45 ; Check the next value up, which must use NILF. 46 define i32 @f4(i32 %dummy, i32 *%src) { 47 ; CHECK-LABEL: f4: 48 ; CHECK: nilf %r0, 65536 49 ; CHECK: xilf %r0, 4294967295 50 ; CHECK: br %r14 51 %res = atomicrmw nand i32 *%src, i32 65536 seq_cst 52 ret i32 %res 53 } 54 55 ; Check the largest useful NILL value. 56 define i32 @f5(i32 %dummy, i32 *%src) { 57 ; CHECK-LABEL: f5: 58 ; CHECK: nill %r0, 65534 59 ; CHECK: xilf %r0, 4294967295 60 ; CHECK: br %r14 61 %res = atomicrmw nand i32 *%src, i32 -2 seq_cst 62 ret i32 %res 63 } 64 65 ; Check the low end of the NILL range. 66 define i32 @f6(i32 %dummy, i32 *%src) { 67 ; CHECK-LABEL: f6: 68 ; CHECK: nill %r0, 0 69 ; CHECK: xilf %r0, 4294967295 70 ; CHECK: br %r14 71 %res = atomicrmw nand i32 *%src, i32 -65536 seq_cst 72 ret i32 %res 73 } 74 75 ; Check the largest useful NILH value, which is one less than the above. 76 define i32 @f7(i32 %dummy, i32 *%src) { 77 ; CHECK-LABEL: f7: 78 ; CHECK: nilh %r0, 65534 79 ; CHECK: xilf %r0, 4294967295 80 ; CHECK: br %r14 81 %res = atomicrmw nand i32 *%src, i32 -65537 seq_cst 82 ret i32 %res 83 } 84 85 ; Check the highest useful NILF value, which is one less than the above. 86 define i32 @f8(i32 %dummy, i32 *%src) { 87 ; CHECK-LABEL: f8: 88 ; CHECK: nilf %r0, 4294901758 89 ; CHECK: xilf %r0, 4294967295 90 ; CHECK: br %r14 91 %res = atomicrmw nand i32 *%src, i32 -65538 seq_cst 92 ret i32 %res 93 } 94
