diff options
Diffstat (limited to 'test/CodeGen/SystemZ/Large/branch-range-04.py')
| -rw-r--r-- | test/CodeGen/SystemZ/Large/branch-range-04.py | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/test/CodeGen/SystemZ/Large/branch-range-04.py b/test/CodeGen/SystemZ/Large/branch-range-04.py deleted file mode 100644 index d475c9565e41..000000000000 --- a/test/CodeGen/SystemZ/Large/branch-range-04.py +++ /dev/null @@ -1,114 +0,0 @@ -# Test 64-bit COMPARE AND BRANCH 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: -# 0xffcc bytes, from MVIY instructions -# conditional branch to main -# after0: -# ... -# conditional branch to main -# afterN: -# -# Each conditional branch sequence occupies 12 bytes if it uses a short -# branch and 16 if it uses a long one. The ones before "main:" have to -# take the branch length into account, which is 6 for short branches, -# so the final (0x34 - 6) / 12 == 3 blocks can use short branches. -# The ones after "main:" do not, so the first 0x34 / 12 == 4 blocks -# can use short branches. The conservative algorithm we use makes -# one of the forward branches unnecessarily long, as noted in the -# check output below. -# -# CHECK: lgb [[REG:%r[0-5]]], 0(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL:\.L[^ ]*]] -# CHECK: lgb [[REG:%r[0-5]]], 1(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 2(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 3(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 4(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# ...as mentioned above, the next one could be a CGRJE instead... -# CHECK: lgb [[REG:%r[0-5]]], 5(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 6(%r3) -# CHECK: cgrje %r4, [[REG]], [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 7(%r3) -# CHECK: cgrje %r4, [[REG]], [[LABEL]] -# ...main goes here... -# CHECK: lgb [[REG:%r[0-5]]], 25(%r3) -# CHECK: cgrje %r4, [[REG]], [[LABEL:\.L[^ ]*]] -# CHECK: lgb [[REG:%r[0-5]]], 26(%r3) -# CHECK: cgrje %r4, [[REG]], [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 27(%r3) -# CHECK: cgrje %r4, [[REG]], [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 28(%r3) -# CHECK: cgrje %r4, [[REG]], [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 29(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 30(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 31(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] -# CHECK: lgb [[REG:%r[0-5]]], 32(%r3) -# CHECK: cgr %r4, [[REG]] -# CHECK: jge [[LABEL]] - -branch_blocks = 8 -main_size = 0xffcc - -print '@global = global i32 0' - -print 'define void @f1(i8 *%base, i8 *%stop, i64 %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 i8, i8 *%%stop, i64 %d' % (i, i) - print ' %%bcur%d = load i8 , i8 *%%bstop%d' % (i, i) - print ' %%bext%d = sext i8 %%bcur%d to i64' % (i, i) - print ' %%btest%d = icmp eq i64 %%limit, %%bext%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 i8, i8 *%%stop, i64 %d' % (i, i + 25) - print ' %%acur%d = load i8 , i8 *%%astop%d' % (i, i) - print ' %%aext%d = sext i8 %%acur%d to i64' % (i, i) - print ' %%atest%d = icmp eq i64 %%limit, %%aext%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 '}' |