llvm-6502/test/CodeGen/SystemZ/fp-div-02.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

120 lines
3.5 KiB
LLVM

; Test 64-bit floating-point division.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare double @foo()
; Check register division.
define double @f1(double %f1, double %f2) {
; CHECK-LABEL: f1:
; CHECK: ddbr %f0, %f2
; CHECK: br %r14
%res = fdiv double %f1, %f2
ret double %res
}
; Check the low end of the DDB range.
define double @f2(double %f1, double *%ptr) {
; CHECK-LABEL: f2:
; CHECK: ddb %f0, 0(%r2)
; CHECK: br %r14
%f2 = load double , double *%ptr
%res = fdiv double %f1, %f2
ret double %res
}
; Check the high end of the aligned DDB range.
define double @f3(double %f1, double *%base) {
; CHECK-LABEL: f3:
; CHECK: ddb %f0, 4088(%r2)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 511
%f2 = load double , double *%ptr
%res = fdiv double %f1, %f2
ret double %res
}
; Check the next doubleword up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f4(double %f1, double *%base) {
; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: ddb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 512
%f2 = load double , double *%ptr
%res = fdiv double %f1, %f2
ret double %res
}
; Check negative displacements, which also need separate address logic.
define double @f5(double %f1, double *%base) {
; CHECK-LABEL: f5:
; CHECK: aghi %r2, -8
; CHECK: ddb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double, double *%base, i64 -1
%f2 = load double , double *%ptr
%res = fdiv double %f1, %f2
ret double %res
}
; Check that DDB allows indices.
define double @f6(double %f1, double *%base, i64 %index) {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 3
; CHECK: ddb %f0, 800(%r1,%r2)
; CHECK: br %r14
%ptr1 = getelementptr double, double *%base, i64 %index
%ptr2 = getelementptr double, double *%ptr1, i64 100
%f2 = load double , double *%ptr2
%res = fdiv double %f1, %f2
ret double %res
}
; Check that divisions of spilled values can use DDB rather than DDBR.
define double @f7(double *%ptr0) {
; CHECK-LABEL: f7:
; CHECK: brasl %r14, foo@PLT
; CHECK: ddb %f0, 160(%r15)
; CHECK: br %r14
%ptr1 = getelementptr double, double *%ptr0, i64 2
%ptr2 = getelementptr double, double *%ptr0, i64 4
%ptr3 = getelementptr double, double *%ptr0, i64 6
%ptr4 = getelementptr double, double *%ptr0, i64 8
%ptr5 = getelementptr double, double *%ptr0, i64 10
%ptr6 = getelementptr double, double *%ptr0, i64 12
%ptr7 = getelementptr double, double *%ptr0, i64 14
%ptr8 = getelementptr double, double *%ptr0, i64 16
%ptr9 = getelementptr double, double *%ptr0, i64 18
%ptr10 = getelementptr double, double *%ptr0, i64 20
%val0 = load double , double *%ptr0
%val1 = load double , double *%ptr1
%val2 = load double , double *%ptr2
%val3 = load double , double *%ptr3
%val4 = load double , double *%ptr4
%val5 = load double , double *%ptr5
%val6 = load double , double *%ptr6
%val7 = load double , double *%ptr7
%val8 = load double , double *%ptr8
%val9 = load double , double *%ptr9
%val10 = load double , double *%ptr10
%ret = call double @foo()
%div0 = fdiv double %ret, %val0
%div1 = fdiv double %div0, %val1
%div2 = fdiv double %div1, %val2
%div3 = fdiv double %div2, %val3
%div4 = fdiv double %div3, %val4
%div5 = fdiv double %div4, %val5
%div6 = fdiv double %div5, %val6
%div7 = fdiv double %div6, %val7
%div8 = fdiv double %div7, %val8
%div9 = fdiv double %div8, %val9
%div10 = fdiv double %div9, %val10
ret double %div10
}