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llvm-mirror/test/CodeGen/SystemZ/fp-move-07.ll
Ulrich Weigand 1431b3c2f5 [SystemZ] Add CodeGen test cases
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.

llvm-svn: 181204
2013-05-06 16:17:29 +00:00

111 lines
2.8 KiB
LLVM

; Test 64-bit floating-point stores.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Test the low end of the STD range.
define void @f1(double *%src, double %val) {
; CHECK: f1:
; CHECK: std %f0, 0(%r2)
; CHECK: br %r14
store double %val, double *%src
ret void
}
; Test the high end of the STD range.
define void @f2(double *%src, double %val) {
; CHECK: f2:
; CHECK: std %f0, 4088(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 511
store double %val, double *%ptr
ret void
}
; Check the next doubleword up, which should use STDY instead of STD.
define void @f3(double *%src, double %val) {
; CHECK: f3:
; CHECK: stdy %f0, 4096(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 512
store double %val, double *%ptr
ret void
}
; Check the high end of the aligned STDY range.
define void @f4(double *%src, double %val) {
; CHECK: f4:
; CHECK: stdy %f0, 524280(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 65535
store double %val, double *%ptr
ret void
}
; Check the next doubleword up, which needs separate address logic.
; Other sequences besides this one would be OK.
define void @f5(double *%src, double %val) {
; CHECK: f5:
; CHECK: agfi %r2, 524288
; CHECK: std %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 65536
store double %val, double *%ptr
ret void
}
; Check the high end of the negative aligned STDY range.
define void @f6(double *%src, double %val) {
; CHECK: f6:
; CHECK: stdy %f0, -8(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 -1
store double %val, double *%ptr
ret void
}
; Check the low end of the STDY range.
define void @f7(double *%src, double %val) {
; CHECK: f7:
; CHECK: stdy %f0, -524288(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 -65536
store double %val, double *%ptr
ret void
}
; Check the next doubleword down, which needs separate address logic.
; Other sequences besides this one would be OK.
define void @f8(double *%src, double %val) {
; CHECK: f8:
; CHECK: agfi %r2, -524296
; CHECK: std %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr double *%src, i64 -65537
store double %val, double *%ptr
ret void
}
; Check that STD allows an index.
define void @f9(i64 %src, i64 %index, double %val) {
; CHECK: f9:
; CHECK: std %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 *
store double %val, double *%ptr
ret void
}
; Check that STDY allows an index.
define void @f10(i64 %src, i64 %index, double %val) {
; CHECK: f10:
; CHECK: stdy %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 *
store double %val, double *%ptr
ret void
}