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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-02-23 11:10:34 +0530 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2016-03-11 11:31:58 -0300 |
| commit | 869d7180dd4a462674971a25b66070da7f2eabcf (patch) | |
| tree | d7eff84810c8790b631e2e2d1d7fc35add9be12a /sysdeps/powerpc/powerpc64/power7 | |
| parent | f60ee13f5d078b29e7ccdaae57bb4e9f14946eb4 (diff) | |
| download | glibc-869d7180dd4a462674971a25b66070da7f2eabcf.tar.gz glibc-869d7180dd4a462674971a25b66070da7f2eabcf.tar.xz glibc-869d7180dd4a462674971a25b66070da7f2eabcf.zip | |
powerpc: Rearrange cfi_offset calls
This patch rearranges cfi_offset() calls after the last store so as to avoid extra DW_CFA_advance opcodes in unwind information.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/power7')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power7/memcmp.S | 22 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power7/strstr.S | 8 |
2 files changed, 15 insertions, 15 deletions
diff --git a/sysdeps/powerpc/powerpc64/power7/memcmp.S b/sysdeps/powerpc/powerpc64/power7/memcmp.S index 4be29008c7..881c7d5838 100644 --- a/sysdeps/powerpc/powerpc64/power7/memcmp.S +++ b/sysdeps/powerpc/powerpc64/power7/memcmp.S @@ -82,17 +82,17 @@ EALIGN (memcmp, 4, 0) byte loop. */ blt cr1, L(bytealigned) std rWORD8, rWORD8SAVE(r1) - cfi_offset(rWORD8, rWORD8SAVE) std rWORD7, rWORD7SAVE(r1) - cfi_offset(rWORD7, rWORD7SAVE) std rOFF8, rOFF8SAVE(r1) - cfi_offset(rWORD7, rOFF8SAVE) std rOFF16, rOFF16SAVE(r1) - cfi_offset(rWORD7, rOFF16SAVE) std rOFF24, rOFF24SAVE(r1) - cfi_offset(rWORD7, rOFF24SAVE) std rOFF32, rOFF32SAVE(r1) - cfi_offset(rWORD7, rOFF32SAVE) + cfi_offset(rWORD8, rWORD8SAVE) + cfi_offset(rWORD7, rWORD7SAVE) + cfi_offset(rOFF8, rOFF8SAVE) + cfi_offset(rOFF16, rOFF16SAVE) + cfi_offset(rOFF24, rOFF24SAVE) + cfi_offset(rOFF32, rOFF32SAVE) li rOFF8,8 li rOFF16,16 @@ -601,18 +601,18 @@ L(unaligned): the actual start of rSTR2. */ clrrdi rSTR2, rSTR2, 3 std rWORD2_SHIFT, rWORD2SHIFTSAVE(r1) - cfi_offset(rWORD2_SHIFT, rWORD2SHIFTSAVE) /* Compute the left/right shift counts for the unaligned rSTR2, compensating for the logical (DW aligned) start of rSTR1. */ clrldi rSHL, rWORD8_SHIFT, 61 clrrdi rSTR1, rSTR1, 3 std rWORD4_SHIFT, rWORD4SHIFTSAVE(r1) - cfi_offset(rWORD4_SHIFT, rWORD4SHIFTSAVE) sldi rSHL, rSHL, 3 cmpld cr5, rWORD8_SHIFT, rSTR2 add rN, rN, r12 sldi rWORD6, r12, 3 std rWORD6_SHIFT, rWORD6SHIFTSAVE(r1) + cfi_offset(rWORD2_SHIFT, rWORD2SHIFTSAVE) + cfi_offset(rWORD4_SHIFT, rWORD4SHIFTSAVE) cfi_offset(rWORD6_SHIFT, rWORD6SHIFTSAVE) subfic rSHR, rSHL, 64 srdi r0, rN, 5 /* Divide by 32 */ @@ -689,15 +689,15 @@ L(duPs4): .align 4 L(DWunaligned): std rWORD8_SHIFT, rWORD8SHIFTSAVE(r1) - cfi_offset(rWORD8_SHIFT, rWORD8SHIFTSAVE) clrrdi rSTR2, rSTR2, 3 std rWORD2_SHIFT, rWORD2SHIFTSAVE(r1) - cfi_offset(rWORD2_SHIFT, rWORD2SHIFTSAVE) srdi r0, rN, 5 /* Divide by 32 */ std rWORD4_SHIFT, rWORD4SHIFTSAVE(r1) - cfi_offset(rWORD4_SHIFT, rWORD4SHIFTSAVE) andi. r12, rN, 24 /* Get the DW remainder */ std rWORD6_SHIFT, rWORD6SHIFTSAVE(r1) + cfi_offset(rWORD8_SHIFT, rWORD8SHIFTSAVE) + cfi_offset(rWORD2_SHIFT, rWORD2SHIFTSAVE) + cfi_offset(rWORD4_SHIFT, rWORD4SHIFTSAVE) cfi_offset(rWORD6_SHIFT, rWORD6SHIFTSAVE) sldi rSHL, rSHL, 3 LD rWORD6, 0, rSTR2 diff --git a/sysdeps/powerpc/powerpc64/power7/strstr.S b/sysdeps/powerpc/powerpc64/power7/strstr.S index fefac1c9e5..0e18193e91 100644 --- a/sysdeps/powerpc/powerpc64/power7/strstr.S +++ b/sysdeps/powerpc/powerpc64/power7/strstr.S @@ -59,14 +59,14 @@ EALIGN (strstr, 4, 0) CALL_MCOUNT 2 mflr r0 /* Load link register LR to r0. */ std r31, -8(r1) /* Save callers register r31. */ - cfi_offset(r31, -8) std r30, -16(r1) /* Save callers register r30. */ - cfi_offset(r30, -16) std r29, -24(r1) /* Save callers register r29. */ - cfi_offset(r29, -24) std r28, -32(r1) /* Save callers register r28. */ - cfi_offset(r28, -32) std r0, 16(r1) /* Store the link register. */ + cfi_offset(r31, -8) + cfi_offset(r30, -16) + cfi_offset(r28, -32) + cfi_offset(r29, -24) cfi_offset(lr, 16) stdu r1, -FRAMESIZE(r1) /* Create the stack frame. */ cfi_adjust_cfa_offset(FRAMESIZE) |