diff options
Diffstat (limited to 'test/CodeGen/SystemZ/Large/branch-range-01.py')
| -rw-r--r-- | test/CodeGen/SystemZ/Large/branch-range-01.py | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/test/CodeGen/SystemZ/Large/branch-range-01.py b/test/CodeGen/SystemZ/Large/branch-range-01.py deleted file mode 100644 index 344d26121afb..000000000000 --- a/test/CodeGen/SystemZ/Large/branch-range-01.py +++ /dev/null @@ -1,108 +0,0 @@ -# Test normal conditional branches in cases where the sheer number of -# instructions causes some branches to be out of range. -# RUN: python %s | llc -mtriple=s390x-linux-gnu | FileCheck %s - -# Construct: -# -# before0: -# conditional branch to after0 -# ... -# beforeN: -# conditional branch to after0 -# main: -# 0xffd8 bytes, from MVIY instructions -# conditional branch to main -# after0: -# ... -# conditional branch to main -# afterN: -# -# Each conditional branch sequence occupies 8 bytes if it uses a short branch -# and 10 if it uses a long one. The ones before "main:" have to take the branch -# length into account -- which is 4 bytes for short branches -- so the final -# (0x28 - 4) / 8 == 4 blocks can use short branches. The ones after "main:" -# do not, so the first 0x28 / 8 == 5 can use short branches. However, -# the conservative algorithm we use makes one branch unnecessarily long -# on each side. -# -# CHECK: c %r4, 0(%r3) -# CHECK: jge [[LABEL:\.L[^ ]*]] -# CHECK: c %r4, 4(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 8(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 12(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 16(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 20(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 24(%r3) -# CHECK: j{{g?}}e [[LABEL]] -# CHECK: c %r4, 28(%r3) -# CHECK: je [[LABEL]] -# CHECK: c %r4, 32(%r3) -# CHECK: je [[LABEL]] -# CHECK: c %r4, 36(%r3) -# CHECK: je [[LABEL]] -# ...main goes here... -# CHECK: c %r4, 100(%r3) -# CHECK: je [[LABEL:\.L[^ ]*]] -# CHECK: c %r4, 104(%r3) -# CHECK: je [[LABEL]] -# CHECK: c %r4, 108(%r3) -# CHECK: je [[LABEL]] -# CHECK: c %r4, 112(%r3) -# CHECK: je [[LABEL]] -# CHECK: c %r4, 116(%r3) -# CHECK: j{{g?}}e [[LABEL]] -# CHECK: c %r4, 120(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 124(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 128(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 132(%r3) -# CHECK: jge [[LABEL]] -# CHECK: c %r4, 136(%r3) -# CHECK: jge [[LABEL]] - -branch_blocks = 10 -main_size = 0xffd8 - -print '@global = global i32 0' - -print 'define void @f1(i8 *%base, i32 *%stop, i32 %limit) {' -print 'entry:' -print ' br label %before0' -print '' - -for i in xrange(branch_blocks): - next = 'before%d' % (i + 1) if i + 1 < branch_blocks else 'main' - print 'before%d:' % i - print ' %%bstop%d = getelementptr i32, i32 *%%stop, i64 %d' % (i, i) - print ' %%bcur%d = load i32 , i32 *%%bstop%d' % (i, i) - print ' %%btest%d = icmp eq i32 %%limit, %%bcur%d' % (i, i) - print ' br i1 %%btest%d, label %%after0, label %%%s' % (i, next) - print '' - -print '%s:' % next -a, b = 1, 1 -for i in xrange(0, main_size, 6): - a, b = b, a + b - offset = 4096 + b % 500000 - value = a % 256 - print ' %%ptr%d = getelementptr i8, i8 *%%base, i64 %d' % (i, offset) - print ' store volatile i8 %d, i8 *%%ptr%d' % (value, i) - -for i in xrange(branch_blocks): - print ' %%astop%d = getelementptr i32, i32 *%%stop, i64 %d' % (i, i + 25) - print ' %%acur%d = load i32 , i32 *%%astop%d' % (i, i) - print ' %%atest%d = icmp eq i32 %%limit, %%acur%d' % (i, i) - print ' br i1 %%atest%d, label %%main, label %%after%d' % (i, i) - print '' - print 'after%d:' % i - -print ' %dummy = load volatile i32, i32 *@global' -print ' ret void' -print '}' |
