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| author | David Hildenbrand | 2021-01-11 17:38:44 +0100 |
|---|---|---|
| committer | Cornelia Huck | 2021-01-21 11:19:45 +0100 |
| commit | d944293d9ab0b8338fbc681e6e5d8ac7829a702f (patch) | |
| tree | 023e7cdc2d13a4a3e947330a29293de1a3a1a9ee /tests/tcg | |
| parent | s390x/tcg: Don't ignore content in r0 when not specified via "b" or "x" (diff) | |
| download | qemu-d944293d9ab0b8338fbc681e6e5d8ac7829a702f.tar.gz qemu-d944293d9ab0b8338fbc681e6e5d8ac7829a702f.tar.xz qemu-d944293d9ab0b8338fbc681e6e5d8ac7829a702f.zip | |
tests/tcg/s390x: Fix EXRL tests
The current EXRL tests crash on real machines: we must not use r0 as a base
register for trt/trtr, otherwise the content gets ignored. Also, we must
not use r0 for exrl, otherwise it gets ignored.
Let's use the "a" constraint so we get a general purpose register != r0.
For op2, we can simply specify a memory operand directly via "Q" (Memory
reference without index register and with short displacement).
Fixes: ad8c851d2e77 ("target/s390x: add EX support for TRT and TRTR")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210111163845.18148-5-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'tests/tcg')
| -rw-r--r-- | tests/tcg/s390x/exrl-trt.c | 8 | ||||
| -rw-r--r-- | tests/tcg/s390x/exrl-trtr.c | 8 |
2 files changed, 8 insertions, 8 deletions
diff --git a/tests/tcg/s390x/exrl-trt.c b/tests/tcg/s390x/exrl-trt.c index 3c5323aecb..16711a3181 100644 --- a/tests/tcg/s390x/exrl-trt.c +++ b/tests/tcg/s390x/exrl-trt.c @@ -19,7 +19,7 @@ int main(void) } asm volatile( " j 2f\n" - "1: trt 0(1,%[op1]),0(%[op2])\n" + "1: trt 0(1,%[op1]),%[op2]\n" "2: exrl %[op1_len],1b\n" " lgr %[r1],%%r1\n" " lgr %[r2],%%r2\n" @@ -27,9 +27,9 @@ int main(void) : [r1] "+r" (r1), [r2] "+r" (r2), [cc] "=r" (cc) - : [op1] "r" (&op1), - [op1_len] "r" (5), - [op2] "r" (&op2) + : [op1] "a" (&op1), + [op1_len] "a" (5), + [op2] "Q" (op2) : "r1", "r2", "cc"); cc = (cc >> 28) & 3; if (cc != 2) { diff --git a/tests/tcg/s390x/exrl-trtr.c b/tests/tcg/s390x/exrl-trtr.c index c33153ad7e..5f30cda6bd 100644 --- a/tests/tcg/s390x/exrl-trtr.c +++ b/tests/tcg/s390x/exrl-trtr.c @@ -19,7 +19,7 @@ int main(void) } asm volatile( " j 2f\n" - "1: trtr 3(1,%[op1]),0(%[op2])\n" + "1: trtr 3(1,%[op1]),%[op2]\n" "2: exrl %[op1_len],1b\n" " lgr %[r1],%%r1\n" " lgr %[r2],%%r2\n" @@ -27,9 +27,9 @@ int main(void) : [r1] "+r" (r1), [r2] "+r" (r2), [cc] "=r" (cc) - : [op1] "r" (&op1), - [op1_len] "r" (3), - [op2] "r" (&op2) + : [op1] "a" (&op1), + [op1_len] "a" (3), + [op2] "Q" (op2) : "r1", "r2", "cc"); cc = (cc >> 28) & 3; if (cc != 1) { |