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[SystemZ] Add CodeGen test cases

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This adds all CodeGen tests for the SystemZ target.

This version of the patch incorporates feedback from a review by
Sean Silva.  Thanks to all reviewers!

Patch by Richard Sandiford.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ulrich Weigand
2013-05-06 16:17:29 +00:00
parent 1d09d56fe1
commit b503b49b51
296 changed files with 31125 additions and 0 deletions
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110
test/CodeGen/SystemZ/fp-move-04.ll Normal file
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@@ -0,0 +1,110 @@
; Test 64-bit floating-point loads.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Test the low end of the LD range.
define double @f1(double *%src) {
; CHECK: f1:
; CHECK: ld %f0, 0(%r2)
; CHECK: br %r14
%val = load double *%src
ret double %val
}
; Test the high end of the LD range.
define double @f2(double *%src) {
; CHECK: f2:
; CHECK: ld %f0, 4088(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 511
%val = load double *%ptr
ret double %val
}
; Check the next doubleword up, which should use LDY instead of LD.
define double @f3(double *%src) {
; CHECK: f3:
; CHECK: ldy %f0, 4096(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 512
%val = load double *%ptr
ret double %val
}
; Check the high end of the aligned LDY range.
define double @f4(double *%src) {
; CHECK: f4:
; CHECK: ldy %f0, 524280(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 65535
%val = load double *%ptr
ret double %val
}
; Check the next doubleword up, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f5(double *%src) {
; CHECK: f5:
; CHECK: agfi %r2, 524288
; CHECK: ld %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 65536
%val = load double *%ptr
ret double %val
}
; Check the high end of the negative aligned LDY range.
define double @f6(double *%src) {
; CHECK: f6:
; CHECK: ldy %f0, -8(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 -1
%val = load double *%ptr
ret double %val
}
; Check the low end of the LDY range.
define double @f7(double *%src) {
; CHECK: f7:
; CHECK: ldy %f0, -524288(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 -65536
%val = load double *%ptr
ret double %val
}
; Check the next doubleword down, which needs separate address logic.
; Other sequences besides this one would be OK.
define double @f8(double *%src) {
; CHECK: f8:
; CHECK: agfi %r2, -524296
; CHECK: ld %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 -65537
%val = load double *%ptr
ret double %val
}
; Check that LD allows an index.
define double @f9(i64 %src, i64 %index) {
; CHECK: f9:
; CHECK: ld %f0, 4095({{%r3,%r2|%r2,%r3}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 4095
%ptr = inttoptr i64 %add2 to double *
%val = load double *%ptr
ret double %val
}
; Check that LDY allows an index.
define double @f10(i64 %src, i64 %index) {
; CHECK: f10:
; CHECK: ldy %f0, 4096({{%r3,%r2|%r2,%r3}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 4096
%ptr = inttoptr i64 %add2 to double *
%val = load double *%ptr
ret double %val
}